Direct-Detection Optical Synchronous CDMA Systems with Double Optical Hard-Limiters Using Modified Prime Sequence Codes. - Tomoaki Ohtsuki; Kazumi Sato; Iwao Sasase; Shinsaku Mori (IEEE J. Sel. Areas Commun., 1996)

Channel Interference Cancellation using Electrooptic Switch and Optical Hard-Limiters for Direct-Detection Optical CDMA Systems. - Tomoaki Ohtsuki (ICC (1), 1997)

Performance Analysis of Direct-Detection Optical Asynchronous CDMA Systems with Double Optical Hard-Limiters. - Tomoaki Ohtsuki (ICC (1), 1997)

Viterbi decoding differential detection with space diversity for 16DAPSK on Rayleigh fading channels. - Tomoaki Ohtsuki (PIMRC, 1997)

Rate-adaptive indoor infrared wireless communication systems using punctured convolutional codes and adaptive PPM. - Michihito Matsuo; Tomoaki Ohtsuki; Iwao Sasase (PIMRC, 1998)

Performance analysis of linear binary block coded optical PPM CDMA systems with soft-decision decoding. - Tomoaki Ohtsuki; Toshinobu Kaneko; Joseph M. Kahn (GLOBECOM, 2000)

Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. - Hiroshi Sawagashira; Katsuhiro Kamakura; Tomoaki Ohtsuki; Iwao Sasase (GLOBECOM, 2000)

Transfer Function Bounds on Performance of Binary Turbo-Coding Followed by M-ary Orthogonal Signal Mapping Through Interleaver. - Tomoaki Ohtsuki; Joseph M. Kahn (ICC (2), 2000)

Turbo-Coed Optical PPM CDMA Systems. - Tomoaki Ohtsuki; Joseph M. Kahn (ICC (2), 2000)

Rate-adaptive indoor infrared wireless communication systems using repeated and punctured convolutional codes. - Tomoaki Ohtsuki (IEEE Commun. Lett., 2000)

Iterative MAP decoding of turbo coded OOK and turbo coded BPPM. - Naotake Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2001)

Performance analysis of indoor infrared wireless systems using PPM CDMA with linealizer with dead-zone and PPM CDMA with hard-limiter on diffuse channels. - Ryoko Matsuo; Tomoaki Ohtsuki; Iwao Sasase (ICC, 2001)

Equalization for infrared wireless systems using OOK-CDMA. - Hiroe Yamaguchi; Ryoko Matsuo; Tomoaki Ohtsuki; Iwao Sasase (ICC, 2001)

Low-density parity-check (LDPC) coded OFDM systems. - Hisashi Futaki; Tomoaki Ohtsuki (VTC Fall, 2001)

Performance evaluation of OFDM with the compensation technique of the nonlinear distortion using partial transmit sequence and predistortion. - Takaaki Horiuchi; Weizu Yang; Tomoaki Ohtsuki; Iwao Sasase (VTC Fall, 2001)

An OFDM system with modified predistorter and MLS. - Hideo Yoshimi; Tomoaki Ohtsuki (VTC Fall, 2001)

Improved design criteria and new trellis codes on space-time trellis coded modulation in fast fading channels. - Yukihiro Sasazaki; Tomoaki Ohtsuki (GLOBECOM, 2002)

Multiple subcarrier modulation for infrared wireless systems using punctured convolutional codes and variable amplitude block codes. - Hiroe Yamaguchi; Tomoaki Ohtsuki; Iwao Sasase (GLOBECOM, 2002)

Performance of low-density parity-check (LDPC) coded OFDM systems. - Hisashi Futaki; Tomoaki Ohtsuki (ICC, 2002)

Performance analysis of atmospheric optical CDMA systems. - Tomoaki Ohtsuki (ICC, 2002)

Turbo-coded atmospheric optical communication systems. - Tomoaki Ohtsuki (ICC, 2002)

Parallel combinatory multiple-subcarrier optical communication systems. - Norio Kitamoto; Tomoaki Ohtsuki (PIMRC, 2002)

SOVA-based iterative decoding of turbo coded OOK and turbo coded BPPM. - Naotake Yamamoto; Tomoaki Ohtsuki (PIMRC, 2002)

Low-density parity-check (LDPC) coded OFDM systems with M-PSK. - Hisashi Futaki; Tomoaki Ohtsuki (VTC Spring, 2002)

Added pilot semiblind iterative channel estimation for OFDM packet transmission. - Naoto Ohkubo; Tomoaki Ohtsuki (GLOBECOM, 2003)

Multiple-subcarrier optical communication systems with peak reduction carriers. - Shota Teramoto; Tomoaki Ohtsuki (GLOBECOM, 2003)

Direct-detection optical CDMA receiver with interference estimation and double optical hardlimiters. - Kenji Wakafuji; Tomoaki Ohtsuki (GLOBECOM, 2003)

Atmospheric optical subcarrier modulation systems using space-time block code. - Hiroshi Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2003)

Frequency offset compensation with MMSE-MUD for multi-carrier CDMA in quasi-synchronous uplink. - Osamu Takyu; Tomoaki Ohtsuki; Masao Nakagawa (ICC, 2003)

Adaptive intemally turbo-coded ultra wideband-impulse radio (AITC-UWB-IR) system. - Naotake Yamamoto; Tomoaki Ohtsuki (ICC, 2003)

Multiple-subcarrier modulation in optical wireless communications. - Tomoaki Ohtsuki (IEEE Commun. Mag., 2003)

Multibits/Sequence-Period Optical CDMA Receiver with Double Optical Hardlimiters. - Kenji Wakafuji; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Performance evaluation of UWB-IR and DS-UWB with MMSE-frequency domain equalization (FDE). - Yoshiyuki Ishiyama; Tomoaki Ohtsuki (GLOBECOM, 2004)

Performance analysis and code design of low-density parity-check (LDPC) coded space-time transmit diversity (STTD) system. - Akinori Ohhashi; Tomoaki Ohtsuki (GLOBECOM, 2004)

Space-time trellis coded OFDM system with added pilot semi-blind iterative channel estimation. - Naoto Ohkubo; Tomoaki Ohtsuki (GLOBECOM, 2004)

SAGE algorithm for channel estimation and data detection with tracking the channel variation in MIMO system. - Takao Someya; Tomoaki Ohtsuki (GLOBECOM, 2004)

Optical wireless MIMO communications (OMIMO). - Daisuke Takase; Tomoaki Ohtsuki (GLOBECOM, 2004)

Optical wireless sensor network system using corner cube retroreflectors (CCRs). - Shota Teramoto; Tomoaki Ohtsuki (GLOBECOM, 2004)

Performance analysis of multibits/sequence-period optical CDMA receiver with double optical hardlimiters. - Kenji Wakafuji; Tomoaki Ohtsuki (GLOBECOM, 2004)

Performance evaluation of space hopping ultra wideband impulse radio (SH-UWB-IR) system. - Takahiro Ezaki; Tomoaki Ohtsuki (ICC, 2004)

Performance analysis of atmospheric optical subcarrier multiplexing systems and atmospheric optical code division multiplexing systems. - Kenji Wakafuji; Tomoaki Ohtsuki (ICC, 2004)

Performance factors for space-time trellis codes in block fading channels. - Amane Inoue; Tomoaki Ohtsuki (PIMRC, 2004)

Companding system with time clustering. - Osamu Takyu; Tomoaki Ohtsuki; Masao Nakagawa (PIMRC, 2004)

Performance evaluation of adaptive internally turbo coded ultra wideband-impulse radio (AITC-UWB-IR) in multipath channels. - Shintaro Yoshida; Tomoaki Ohtsuki (VTC Fall (2), 2004)

Channel estimation and data detection with tracking channel variation in MIMO system using ZF-based SAGE algorithm. - Takao Someya; Tomoaki Ohtsuki (GLOBECOM, 2005)

Throughput maximization transmission control scheme using channel prediction for MIMO systems. - Yoshikazu Takei; Tomoaki Ohtsuki (GLOBECOM, 2005)

Wireless sensor networks with local fusion. - Hiroshi Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2005)

Performance analysis of optical wireless MIMO with optical beat interference. - Daisuke Takase; Tomoaki Ohtsuki (ICC, 2005)

Low complexity source localization algorithms in sensor networks. - Junichi Shirahama; Tomoaki Ohtsuki; Toshinobu Kaneko (PE-WASUN, 2005)

Uplink Pre-Equalization Using MMSE Prediction for TDDIMC-CDMA Systems. - Yoshikazu Takei; Tomoaki Ohtsuki (PIMRC, 2005)

Optical Wireless Sensor Network System Using Corner Cube Retroreflectors. - Shota Teramoto; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2005)

Rake Performance for UWB-IR System with SISO and MISO. - Takahiro Ezaki; Tomoaki Ohtsuki (IEICE Trans. Commun., 2005)

Decoding Algorithms Based on Oscillation for Low-Density Parity Check Codes. - Satoshi Gounai; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Pre-Rake Diversity Combining for UWB Systems in IEEE 802.15 UWB Multipath Channel. - Shunsuke Imada; Tomoaki Ohtsuki (IEICE Trans. Commun., 2005)

Computational Complexity and Performance of RAKE Receivers with Channel Estimation for DS-UWB. - Hiroyuki Sato; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Throughput Maximization Transmission Control Scheme for MIMO Systems. - Kenji Suto; Yoshitaka Hara; Tomoaki Ohtsuki; Yoshikazu Takei (IEICE Trans. Commun., 2005)

Criterion for Reducing Error Rate Degradation by Nonlinear Amplifier for Multicarrier Transmission. - Osamu Takyu; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2005)

Parallel combinatory multiple-subcarrier optical wireless communication systems. - Norio Kitamoto; Tomoaki Ohtsuki (Int. J. Commun. Syst., 2005)

Multiple-subcarrier optical communication systems with subcarrier signal-point sequence. - Shota Teramoto; Tomoaki Ohtsuki (IEEE Trans. Commun., 2005)

Estimation Method of False Alarm Probability and Observation Noise Variance in Wireless Sensor Networks. - Takahiro Fujita; Tomoaki Ohtsuki; Toshinobu Kaneko (FUSION, 2006)

SAGE Algorithm for Channel Estimation and Data Detection Using Superimposed Training in MIMO System. - Fumiaki Tsuzuki; Tomoaki Ohtsuki (GLOBECOM, 2006)

Performance of Concatenated Code with LDPC Code and RSC Code. - Satoshi Gounai; Tomoaki Ohtsuki; Toshinobu Kaneko (ICC, 2006)

Performance Evaluation of Layered Space-Frequency Equalization with Iterative Cancellation. - Amane Inoue; Tomoaki Ohtsuki (PIMRC, 2006)

Performance Analysis of LDPC Code with Spatial Diversity. - Satoshi Gounai; Tomoaki Ohtsuki (VTC Fall, 2006)

Modified Belief Propagation Decoding Algorithm for Low-Density Parity Check Code Based on Oscillation. - Satoshi Gounai; Tomoaki Ohtsuki; Toshinobu Kaneko (VTC Spring, 2006)

Distributed EM Algorithms for Acoustic Source Localization in Sensor Networks. - Noriaki Kitakoga; Tomoaki Ohtsuki (VTC Fall, 2006)

MMSE Precoder with Mode Selection for MIMO Systems. - Kenichi Kobayashi 002; Tomoaki Ohtsuki; Toshinobu Kaneko (VTC Fall, 2006)

Method of Reducing Search Area for Localization in Sensor Networks. - Junichi Shirahama; Tomoaki Ohtsuki; Toshinobu Kaneko (VTC Spring, 2006)

Lowering Error Floor of Irregular LDPC Codes by CRC and OSD Algorithm. - Satoshi Gounai; Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Computational Complexity Reduction of MLD Based on SINR in MIMO Spatial Multiplexing Systems. - Katsunari Honjo; Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Chip-Level Detection in Optical Frequency Hopping Code Division Multiple Access. - Shoji Ichiki; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Bootstrapped Modified Weighted Bit Flipping Decoding of Low Density Parity Check Codes. - Yoichi Inaba; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Reliability-Based Hybrid ARQ (RB-HARQ) Schemes Using Low-Density Parity-Check (LDPC) Codes. - Yoichi Inaba; Tomonori Saito; Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Performance Analysis of Statistical STBC Cooperative Diversity Using Binary Sensors with Observation Noise. - Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Spatial Multiplexing in Optical Wireless MIMO Communications Over Indoor Environment. - Daisuke Takase; Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Companding System Based on Time Clustering for Reducing Peak Power of OFDM Symbol in Wireless Communications. - Osamu Takyu; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

A Sign Selection Method of Orthogonal Variable Spreading Factor Code for Peak Power Reduction in Multi-Rate OFCDM Systems. - Osamu Takyu; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2006)

Channel Estimation with Selective Superimposed Pilot Sequences under Fast Fading Environments. - Fumiaki Tsuzuki; Tomoaki Ohtsuki (IEICE Trans. Commun., 2006)

Codes with Low Peak-to-Average Power Ratio for Multi-Code CDMA. - Jianqin Zhou; Zhenfei Xie; Tomoaki Ohtsuki (FGCN (1), 2007)

Precoding for MIMO Systems in Line-Of-Sight (LOS) Environment. - Kenichi Kobayashi 002; Tomoaki Ohtsuki; Toshinobu Kaneko (GLOBECOM, 2007)

Mapping for Iterative MMSE-SIC with Belief Propagation. - Satoshi Gounai; Tomoaki Ohtsuki (ICC, 2007)

Throughput Maximization Transmission Control Scheme Using Precoding for MIMO Systems. - Kenichi Kobayashi 002; Tomoaki Ohtsuki; Toshinobu Kaneko (ICC, 2007)

Optical Wireless MIMO (OMIMO) with Backward Spatial Filter (BSF) in Diffuse Channels. - Daisuke Takase; Tomoaki Ohtsuki (ICC, 2007)

Size Compatible (SC)-Array LDPC Codes. - Daisuke Abematsu; Tomoaki Ohtsuki; Sigit P. W. Jarot; Tsuyoshi Kashima (VTC Fall, 2007)

LLR Based Iterative Reduced-Complexity MLD Algorithm with Parallel Interference Cancellation (PIC) in MIMO Systems. - Katsunari Honjo; Tomoaki Ohtsuki (VTC Spring, 2007)

MultiBand-OFDM System with Concatenated Coding Scheme. - Hiroyuki Sato; Tomoaki Ohtsuki; Tsuyoshi Kashima; Sigit P. W. Jarot (VTC Spring, 2007)

Random Beamforming Using Low Feedback and Low Latency Power Allocation. - Yuki Tsuchiya; Tomoaki Ohtsuki; Toshinobu Kaneko (VTC Fall, 2007)

Low Computational Complexity 2-Dimensional Pilot-Symbol-Assisted (2-D PSA) MMSE Channel Estimation with Extended Estimation Size for MIMO-OFDM Systems. - Yoshitaka Eriguchi; Tomoaki Ohtsuki; Toshinobu Kaneko (WCNC, 2007)

Lowering the Error Floors of Irregular LDPC Code on Fast Fading Environment with Perfect and Imperfect CSIs. - Satoshi Gounai; Tomoaki Ohtsuki; Toshinobu Kaneko (IEICE Trans. Commun., 2007)

Double Window Cancellation and Combining for OFDM in Time-Invariant Large Delay Spread Channel. - JunHwan Lee; Yoshihisa Kishiyama; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

LDPC Codes in Communications and Broadcasting. - Tomoaki Ohtsuki (IEICE Trans. Commun., 2007)

Performance Evaluation of SAGE Algorithm for Channel Estimation and Data Detection Using Superimposed Training in MIMO System. - Fumiaki Tsuzuki; Tomoaki Ohtsuki (IEICE Trans. Commun., 2007)

Low Complexity Localization Algorithm Based on NLOS Node Identification Using Minimum Subset for NLOS Environments. - Takahiro Fujita; Tomoaki Ohtsuki (GLOBECOM, 2008)

MIMO System with Relative Phase Difference Time-Shift Modulation in Rician Fading Environments. - Kenichi Kobayashi 002; Takao Someya; Tomoaki Ohtsuki; Sigit P. W. Jarot; Tsuyoshi Kashima (ICC, 2008)

A Random Beamforming Technique in Multiuser Multi-Antenna OFDM Systems For Large System Capacity and Fairness Among Users. - Yoshitaka Eriguchi; Tomoaki Ohtsuki (VTC Fall, 2008)

RSS-Based Localization in Environments with Different Path Loss Exponent for Each Link. - Junichi Shirahama; Tomoaki Ohtsuki (VTC Spring, 2008)

Convergence Acceleration of Iterative Signal Detection for MIMO System with Belief Propagation. - Satoshi Gounai; Tomoaki Ohtsuki (IEICE Trans. Commun., 2008)

Mapping for Iterative MMSE-SIC with Belief Propagation. - Satoshi Gounai; Tomoaki Ohtsuki; Toshinobu Kaneko (IEICE Trans. Commun., 2008)

MIMO Systems in the Presence of Feedback Delay. - Kenichi Kobayashi 002; Tomoaki Ohtsuki; Toshinobu Kaneko (IEICE Trans. Commun., 2008)

MIMO System with Relative Phase Difference Time-Shift Modulation for Rician Fading Environment. - Kenichi Kobayashi 002; Takao Someya; Tomoaki Ohtsuki; Sigit P. W. Jarot; Tsuyoshi Kashima (IEICE Trans. Commun., 2008)

Scheduling Algorithm with Power Allocation for Random Unitary Beamforming. - Yuki Tsuchiya; Tomoaki Ohtsuki; Toshinobu Kaneko (IEICE Trans. Commun., 2008)

Cooperative Diversity Can Mitigate Keyhole Effects in Wireless MIMO Systems. - Oussama Souihli; Tomoaki Ohtsuki (GLOBECOM, 2009)

The Two-Way MIMO Wire-Tap Channel. - Oussama Souihli; Tomoaki Ohtsuki (ICC, 2009)

A Novel Routing Algorithm Based on Ant Colony System for Wireless Sensor Networks. - Xin Guan 003; Lin Guan 001; Xin Gang Wang 002; Tomoaki Ohtsuki (ICCCN, 2009)

A Localization Algorithm for Nonuniform Propagation Environments in Sensor Networks. - Noriaki Kitakoga; Tomoaki Ohtsuki (ICCCN, 2009)

Signal-subspace-partition event filtering for eigenvector-based security system using radio waves. - Shohei Ikeda; Tomoaki Ohtsuki; Hiroyuki Tsuji (PIMRC, 2009)

Performance of turbo equalized double window cancellation and combining in large delay spread channels. - JunHwan Lee; Tomoaki Ohtsuki; Masao Nakagawa (PIMRC, 2009)

An improved user selection algorithm in multiuser MIMO broadcast. - Zhi Min; Tomoaki Ohtsuki (PIMRC, 2009)

Initial LLR setting for belief propagation decoding with network coding. - Naohiro Tsuji; Tomoaki Ohtsuki (PIMRC, 2009)

Indoor Event Detection with Eigenvector Spanning Signal Subspace for Home or Office Security. - Shohei Ikeda; Hiroyuki Tsuji; Tomoaki Ohtsuki (IEICE Trans. Commun., 2009)

Turbo Equalized Double Window Cancellation and Combining Robust to Large Delay Spread Channel. - JunHwan Lee; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2009)

An Improved User Selection Algorithm in Multiuser MIMO Broadcast with Channel Prediction. - Zhi Min; Tomoaki Ohtsuki (IEICE Trans. Commun., 2009)

Random Beamforming Using Iterative Power Allocation with Small Feedback Information and Low Latency. - Yuki Tsuchiya; Tomoaki Ohtsuki (IEICE Trans. Commun., 2009)

A Novel Capacity Outer Bound for the MIMO Gaussian Interference Channel and Application to Relay-Assisted Communications. - Oussama Souihli; Tomoaki Ohtsuki (GLOBECOM, 2010)

Resolution Improvement of Wideband Direction-of-Arrival Estimation "Squared-TOPS". - Kazuki Okane; Tomoaki Ohtsuki (ICC, 2010)

Network MIMO in the Presence of Transmit Desynchronization. - Oussama Souihli; Tomoaki Ohtsuki (ICC, 2010)

The MIMO Relay Channel in the Presence of Keyhole Effects. - Oussama Souihli; Tomoaki Ohtsuki (ICC, 2010)

Initial LLR Setting for Belief Propagation Decoding in Relay System. - Naohiro Tsuji; Tomoaki Ohtsuki (ICC, 2010)

Extrinsic Information Setting for Belief Propagation Decoding with Network Coding. - Naohiro Tsuji; Tomoaki Ohtsuki (VTC Spring, 2010)

Performance evaluation of iterative LDPC-coded MIMO OFDM system with time interleaving in mobile line-of-sight environments. - Kazuhiko Mitsuyama; Kohei Kambara; Takayuki Nakagawa; Tetsuomi Ikeda; Tomoaki Ohtsuki (WSA, 2010)

Algorithms, Protocols and Future Applications of Wireless Sensor Networks. - You-Chiun Wang; Tomoaki Ohtsuki; Athanasios V. Vasilakos; Ashutosh Sabharwal; Yuh-Shyan Chen; Yu-Chee Tseng (Comput. J., 2010)

Performance Evaluation of Iterative LDPC-Coded MIMO OFDM System with Time Interleaving. - Kazuhiko Mitsuyama; Kohei Kambara; Takayuki Nakagawa; Tetsuomi Ikeda; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Multi-Band Received Signal Strength Fingerprinting Based Indoor Location System. - Chinnapat Sertthin; Takeo Fujii; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2010)

6-Axis Sensor Assisted Low Complexity High Accuracy-Visible Light Communication Based Indoor Positioning System. - Chinnapat Sertthin; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2010)

Half-duplex relaying with serially concatenated low-density generator matrix (SCLDGM) codes. - Yusuke Kumano; Tomoaki Ohtsuki (Phys. Commun., 2010)

A new load balancing and data collection algorithm for energy saving in wireless sensor networks. - Xin Guan 003; Lin Guan 001; Xin Gang Wang 002; Tomoaki Ohtsuki (Telecommun. Syst., 2010)

Joint feedback and scheduling scheme for service-differentiated multiuser MIMO systems. - Oussama Souihli; Tomoaki Ohtsuki (IEEE Trans. Wirel. Commun., 2010)

Low complexity cyclostationary feature detection method to compenstate cyclostationarity-degradation by guard interval insertion. - Hiroyoshi Yano; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki (CrownCom, 2011)

Trajectory Optimization of Packet Ferries in Sparse Mobile Social Networks. - Xin Guan 003; Min Chen 003; Cong Liu 001; Hongyang Chen; Tomoaki Ohtsuki (GLOBECOM, 2011)

Development of MMSE Macro-Diversity Receiver with Delay Difference Correction Technique. - Kazuhiko Mitsuyama; Tetsuomi Ikeda; Tomoaki Ohtsuki (GLOBECOM, 2011)

On Physical Layer Simulation Model for 6-Axis Sensor Assisted VLC Based Positioning System. - Chinnapat Sertthin; Takeo Fujii; Osamu Takyu; Yohtaro Umeda; Tomoaki Ohtsuki (GLOBECOM, 2011)

Transmit and Receive Weights in Vector Coding with Channel Estimation Error and Feedback Delay. - Kyohei Takano; Koichi Adachi; Tomoaki Ohtsuki (GLOBECOM, 2011)

Blind Carrier Frequency Offset Estimation for MIMO OFDMA Uplink. - Weile Zhang; Hongyang Chen; Qinye Yin 001; Tomoaki Ohtsuki (GLOBECOM, 2011)

Internal Threats Avoiding Based Forwarding Protocol in Social Selfish Delay Tolerant Networks. - Xin Guan 003; Cong Liu 001; Min Chen 003; Hongyang Chen; Tomoaki Ohtsuki (ICC, 2011)

Distributed Angle Estimation for Wireless Sensor Network Localization with Multipath Fading. - Weile Zhang; Qinye Yin 001; Hongyang Chen; Wenjie Wang 001; Tomoaki Ohtsuki (ICC, 2011)

A state classification method based on space-time signal processing using SVM for wireless monitoring systems. - Jihoon Hong; Tomoaki Ohtsuki (PIMRC, 2011)

A nearest transmitter classification method for VLC based positioning system. - Chinnapat Sertthin; Tomoaki Ohtsuki; Osamu Takyu; Takeo Fujii; Yohtaro Umeda (PIMRC, 2011)

Codebook Based Interference Mitigation with Base Station Cooperation in Multi-Cell Cellular Network. - Prasertsak Charoen; Tomoaki Ohtsuki (VTC Fall, 2011)

Frequency Band Allocation in MIMO System Based on Received Power Difference among Users. - Hironori Kizuka; Koichi Adachi; Tomoaki Ohtsuki (VTC Spring, 2011)

Phase Rotation Sequence Selection Method for IFDMA with DDCE. - Kazunori Yamamoto; Koichi Adachi; Tomoaki Ohtsuki (VTC Spring, 2011)

Localization using iterative angle of arrival method sharing snapshots of coherent subarrays. - Shun Kawakami; Tomoaki Ohtsuki (EURASIP J. Adv. Signal Process., 2011)

Orthogonal beamforming using Gram-Schmidt orthogonalization for multi-user MIMO downlink system. - Kunitaka Matsumura; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2011)

Robust DOA Estimation for Uncorrelated and Coherent Signals. - Hui Chen 003; Qun Wan; Hongyang Chen; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Subcarrier Mapping for Single-User SC-FDMA Relay Communications. - Yu Hemmi; Koichi Adachi; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

An Autonomous Selective Cooperative ARQ Protocol for Hybrid Mobile Wireless Sensor Networks. - Nandar Lynn; Osamu Takyu; Koichi Adachi; Masao Nakagawa; Tomoaki Ohtsuki (J. Commun., 2011)

Thwarting Diversity Attacks in wireless network coding using threshold signatures and a sender-centered approach. - Juan Camilo Corena; Tomoaki Ohtsuki (GLOBECOM, 2012)

Q-learning cell selection for femtocell networks: Single- and multi-user case. - Chaima Dhahri; Tomoaki Ohtsuki (GLOBECOM, 2012)

Design method of relative magnitude coefficients considering rotation of basis vectors in interference space on the K-user MIMO interference channel for downlink system. - Kunitaka Matsumura; Tomoaki Ohtsuki (GLOBECOM, 2012)

Falling detection using multiple doppler sensors. - Shoichiro Tomii; Tomoaki Ohtsuki (Healthcom, 2012)

Wireless security and monitoring system using array antenna: Array sensor. - Tomoaki Ohtsuki (ICNC, 2012)

Interference mitigation depending on the number of antennas and CSI available at femtocells. - Genji Hayashi; Tomoaki Ohtsuki (ISITA, 2012)

A new human model for Doppler radar simulation. - Franck Dirhold; Tomoaki Ohtsuki (PIMRC, 2012)

Double stage and combining detection for cyclo-stationary feature. - Osamu Takyu; Hiroyoshi Yano; Takeo Fujii; Tomoaki Ohtsuki (RWS, 2012)

A Multiple-MAC-Based Protocol to Identify Misbehaving Nodes in Network Coding. - Juan Camilo Corena; Tomoaki Ohtsuki (VTC Fall, 2012)

Learning-Based Cell Selection Method for Femtocell Networks. - Chaima Dhahri; Tomoaki Ohtsuki (VTC Spring, 2012)

Hardware Implementation of Proposed Antenna Selection Algorithm and Its Performance Evaluation Using Received Signals in Field Experiment. - Kazuhiko Mitsuyama; Tetsuomi Ikeda; Tomoaki Ohtsuki (VTC Fall, 2012)

Superposed Band Detection Based on Error Probability Using Initial Likelihood Masking. - Tomoaki Ohtsuki; Genji Hayashi; Jun Mashino; Takatoshi Sugiyama (VTC Spring, 2012)

Cooperative ARQ with Fairness via Vickrey Auction-Based Spectrum Leasing. - Takuya Yamada; Tomoaki Ohtsuki (VTC Spring, 2012)

High Power Efficiency Transmission Based on Game Theory for AF Cooperative Communication. - Takuya Yamada; Tomoaki Ohtsuki (VTC Fall, 2012)

Passive localization using array sensor with support vector machine. - Jihoon Hong; Shun Kawakami; Tomoaki Ohtsuki (WPNC, 2012)

Epidemic theory based H+1 hop forwarding for intermittently connected mobile ad hoc networks. - Xin Guan 003; Min Chen 003; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2012)

Joint SVD-GSVD Precoding Technique and Secrecy Capacity Lower Bound for the MIMO Relay Wire-tap Channel. - Marouen Jilani; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2012)

PAPR Reduction of TDD-CDMA Using Joint Transmission Technique. - Norharyati Binti Harum; Tomoaki Ohtsuki; Masao Nakagawa (IEICE Trans. Commun., 2012)

State Classification with Array Sensor Using Support Vector Machine for Wireless Monitoring Systems. - Jihoon Hong; Tomoaki Ohtsuki (IEICE Trans. Commun., 2012)

Array Antenna based Localization Using Spatial Smoothing Processing. - Jihoon Hong; Shun Kawakami; Clement N. Nyirenda; Tomoaki Ohtsuki (J. Commun., 2012)

Secure and Fast Aggregation of Financial Data in Cloud-Based Expense Tracking Applications. - Juan Camilo Corena; Tomoaki Ohtsuki (J. Netw. Syst. Manag., 2012)

Transparent Inband Feedback for Training-Based MIMO Systems. - Oussama Souihli; Tomoaki Ohtsuki (Wirel. Pers. Commun., 2012)

Cell selection using distributed Q-learning in heterogeneous networks. - Toshihito Kudo; Tomoaki Ohtsuki (APSIPA, 2013)

Proofs of data possession and pollution checking for Regenerating Codes. - Juan Camilo Corena; Tomoaki Ohtsuki (GLOBECOM, 2013)

A case where noise increases the secrecy capacity of wiretap channels. - Oussama Souihli; Tomoaki Ohtsuki (GLOBECOM, 2013)

Ambient intelligence sensing using array sensor: device-free radio based approach. - Jihoon Hong; Tomoaki Ohtsuki (UbiComp (Adjunct Publication), 2013)

Multicast capacity analysis for social-proximity urban bus-assisted VANETs. - Yan Huang 032; Xin Guan 003; Zhipeng Cai 001; Tomoaki Ohtsuki (ICC, 2013)

Human activity classification and localization algorithm based on temporal-spatial virtual array. - Yoshihisa Okamoto; Tomoaki Ohtsuki (ICC, 2013)

Human activity classification and localization using bistatic three frequency CW radar. - Yoshihisa Okamoto; Tomoaki Ohtsuki (ICC, 2013)

Optimal channel-sensing policy based on Fuzzy Q-Learning process over cognitive radio systems. - Fereidoun H. Panahi; Tomoaki Ohtsuki (ICC, 2013)

Array sensor: Monitoring using wireless signals. - Jihoon Hong; Tomoaki Ohtsuki (ICTC, 2013)

Load balancing regenerating codes for multimedia content streaming. - Juan Camilo Corena; Tomoaki Ohtsuki (PIMRC, 2013)

PAPR reduction of amplify-and-forward relay OFDM system using subcarrier pairing method. - Norharyati Binti Harum; Kouki Yuda; Tomoaki Ohtsuki (PIMRC, 2013)

Cooperative fall detection using Doppler radar and array sensor. - Jihoon Hong; Shoichiro Tomii; Tomoaki Ohtsuki (PIMRC, 2013)

Interference detection technique using robust LLR for superposed multicarrier transmission. - Naotoshi Yoda; Genji Hayashi; Tomoaki Ohtsuki; Jun Mashino; Takatoshi Sugiyama (PIMRC, 2013)

Linear Precoding for Distributed Estimation of Correlated Sources in WSN MIMO System. - Ajib Setyo Arifin; Tomoaki Ohtsuki (VTC Spring, 2013)

Cell range expansion using distributed Q-learning in heterogeneous networks. - Toshihito Kudo; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2013)

Benefits of Rich Scattering in MIMO Channels: A Graph-Theoretical Perspective. - Oussama Souihli; Tomoaki Ohtsuki (IEEE Commun. Lett., 2013)

MIMO Receiver with Antenna Subset Selection: Algorithm and Hardware Implementation. - Kazuhiko Mitsuyama; Tetsuomi Ikeda; Tomoaki Ohtsuki (IEICE Trans. Commun., 2013)

Hidden Markov Model Based Localization Using Array Antenna. - Yusuke Inatomi; Jihoon Hong; Tomoaki Ohtsuki (Int. J. Wirel. Inf. Networks, 2013)

Development and Performance Evaluation of MMSE MacroDiversity Reception System With Delay Difference Correction. - Kazuhiko Mitsuyama; Tetsuomi Ikeda; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2013)

Global SNR maximization for distributed estimation and capacity of data collection in wireless sensor networks using individual power constraint. - Ajib Setyo Arifin; Tomoaki Ohtsuki (APSIPA, 2014)

Physical layer network coding with multiple untrusted relays for physical layer security. - Kazuma Yamaguchi; Osamu Takyu; Tomoaki Ohtsuki; Fumihito Sasamori; Shiro Handa (APSIPA, 2014)

XOR network coding pollution prevention without homomorphic functions. - Juan Camilo Corena; Anirban Basu 001; Shinsaku Kiyomoto; Yutaka Miyake; Tomoaki Ohtsuki (CCNC, 2014)

Improve the performance of bus-assisted vehicular ad hoc networks via cooperative game theory. - Yan Huang 032; Hong Wu; Yan Zhang 002; Xin Guan 003; Tomoaki Ohtsuki (ChinaCom, 2014)

Coalition graph game for multi-hop routing path selection in Cooperative Cognitive Radio Networks. - Aohan Li; Xin Guan 003; Ziheng Yang; Tomoaki Ohtsuki (ChinaCom, 2014)

Beyond proofs of data possession: Finding defective blocks in outsourced storage. - Juan Camilo Corena; Anirban Basu 001; Shinsaku Kiyomoto; Yutaka Miyake; Tomoaki Ohtsuki (GLOBECOM, 2014)

Device-free passive localization from signal subspace eigenvectors. - Jihoon Hong; Tomoaki Ohtsuki (GLOBECOM, 2014)

Interference suppression using EM algorithm in OFDM transmissions. - Naotoshi Yoda; Tomoaki Ohtsuki; Jun Mashino; Takatoshi Sugiyama (GLOBECOM, 2014)

Analytical evaluation of fractional frequency reuse for MIMO heterogeneous cellular networks. - He Zhuang; Tomoaki Ohtsuki (GLOBECOM, 2014)

Design algorithm of relative magnitude coefficients using Brent's method on the K-User MIMO-IFC. - Kunitaka Matsumura; Tomoaki Ohtsuki (ICC, 2014)

Stochastic geometry based analytical modeling of cognitive heterogeneous cellular networks. - Fereidoun H. Panahi; Tomoaki Ohtsuki (ICC, 2014)

Power compensation in WLAN positioning using a smartphone. - Masaaki Yamamoto; Tomoaki Ohtsuki (ISSNIP, 2014)

Secondary transmit beamformings for spectrum leasing in CRNs in the presence of eavesdropper. - Masahiro Endo; Tomoaki Ohtsuki; Takeo Fujii; Osamu Takyu (PIMRC, 2014)

Detecting unexpected fall using array antenna. - Yusuke Hino; Jihoon Hong; Tomoaki Ohtsuki (PIMRC, 2014)

A fall detection system using low resolution infrared array sensor. - Shota Mashiyama; Jihoon Hong; Tomoaki Ohtsuki (PIMRC, 2014)

Localization calibration using illuminance sensor for pedestrian dead reckoning with smartphones. - Yohei Murakami; Tomoaki Ohtsuki (PIMRC, 2014)

Blink detection using Doppler sensor. - Chihiro Tamba; Shoichiro Tomii; Tomoaki Ohtsuki (PIMRC, 2014)

Parameter optimization using local search for CRE and eICIC in heterogeneous network. - Kurumi Yamamoto; Tomoaki Ohtsuki (PIMRC, 2014)

Q-Learning Based Cell Selection for UE Outage Reduction in Heterogeneous Networks. - Toshihito Kudo; Tomoaki Ohtsuki (VTC Fall, 2014)

Mobile-phone indoor localization based on microwave identification using web-access time. - Masaaki Yamamoto; Tomoaki Ohtsuki; Hironori Utsumi; Naohiro Furukawa (WiSNet, 2014)

Adaptive Q-Learning Cell Selection Method for Open-Access Femtocell Networks: Multi-User Case. - Chaima Dhahri; Tomoaki Ohtsuki (IEICE Trans. Commun., 2014)

Foreword. - Tomoaki Ohtsuki (IEICE Trans. Commun., 2014)

Optimal Channel-Sensing Scheme for Cognitive Radio Systems Based on Fuzzy Q-Learning. - Fereidoun H. Panahi; Tomoaki Ohtsuki (IEICE Trans. Commun., 2014)

Pollution-Free Regenerating Codes With Fast Reconstruction Verification for Verifiable Cloud Storage. - Juan Camilo Corena; Tomoaki Ohtsuki (J. Networks, 2014)

Cell selection for open-access femtocell networks: Learning in changing environment. - Chaima Dhahri; Tomoaki Ohtsuki (Phys. Commun., 2014)

A model based on Poisson point process for downlink K tiers fractional frequency reuse heterogeneous networks. - He Zhuang; Tomoaki Ohtsuki (Phys. Commun., 2014)

A Model Based on Poisson Point Process for Analyzing MIMO Heterogeneous Networks Utilizing Fractional Frequency Reuse. - He Zhuang; Tomoaki Ohtsuki (IEEE Trans. Wirel. Commun., 2014)

Dynamic almost blank subframe assignment method with power control subframe for user fairness. - Masayoshi Ozawa; Tomoaki Ohtsuki (APCC, 2015)

Complexity reduction of pico cell clustering for interference alignment in heterogeneous networks. - Ryuma Seno; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (APCC, 2015)

Undesired signal power estimation based on estimated superposed band for multicarrier transmission. - Yohei Shibata; Tomoaki Ohtsuki; Jun Mashino (APCC, 2015)

Room-level proximity detection using beacon frame from multiple access points. - Yugo Agata; Jihoon Hong; Tomoaki Ohtsuki (APSIPA, 2015)

Service-aware user-centric clustering and scheduling for cloud-RAN with coordinated multi-point transmission. - Anthony Beylerian; Tomoaki Ohtsuki (APSIPA, 2015)

Performance evaluation of the physical layer security using artificial noise and relay station. - Junichi Kabeya; Osamu Takyu; Tomoaki Ohtsuki; Fumihito Sasamori; Shiro Handa (APSIPA, 2015)

Opinion Mining in Twitter How to Make Use of Sarcasm to Enhance Sentiment Analysis. - Mondher Bouazizi; Tomoaki Ohtsuki (ASONAM, 2015)

Sarcasm Detection in Twitter: "All Your Products Are Incredibly Amazing!!!" - Are They Really? - Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2015)

Graph Theory Based Capacity Analysis for Vehicular Ad Hoc Networks. - Yan Huang 032; Min Chen 003; Zhipeng Cai 001; Xin Guan 003; Tomoaki Ohtsuki; Yan Zhang 002 (GLOBECOM, 2015)

Interference Alignment for Time-Varying Channel with Channel and Weight Predictions Based on Auto Regressive Model. - Masayoshi Ozawa; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (GLOBECOM, 2015)

User identification based on toothbrushing information using three-axis accelerometer. - Kazuki Kobayashi; Tomoaki Ohtsuki (UbiComp/ISWC Adjunct, 2015)

Activity recognition using array antenna. - Yusuke Hino; Jihoon Hong; Tomoaki Ohtsuki (ICC, 2015)

Activity recognition using low resolution infrared array sensor. - Shota Mashiyama; Jihoon Hong; Tomoaki Ohtsuki (ICC, 2015)

Heartbeat detection by using Doppler radar with wavelet transform based on scale factor learning. - Shoichiro Tomii; Tomoaki Ohtsuki (ICC, 2015)

DOA estimation in MIMO radar using temporal spatial virtual array with MUSIC algorithm. - Hirotaka Hayashi; Tomoaki Ohtsuki (ICSPCS, 2015)

Ergodic capacity analysis of full-duplex amplify-forward MIMO relay channel using Tracy-Widom distribution. - Ajib Setyo Arifin; Tomoaki Ohtsuki (PIMRC, 2015)

On secrecy rate analysis of MIMO wiretap channel aided by a cooperative jammer with channel estimation error. - Shunya Iwata; Tomoaki Ohtsuki (PIMRC, 2015)

Suppression of multiple interferences for superposed multicarrier transmission. - Yuto Kakizaki; Tomoaki Ohtsuki; Jun Mashino (PIMRC, 2015)

Heartbeat detection with Doppler sensor using adaptive scale factor selection on learning. - Eriko Mogi; Tomoaki Ohtsuki (PIMRC, 2015)

Interference alignment for multi-user MIMO interference channels via a Riemannian optimization approach. - Fereidoun H. Panahi; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (PIMRC, 2015)

Evaluation of information leak by robustness evaluation of countermeasure to disguised CSI in PLNC considering physical layer security. - Kengo Matsumoto; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki; Fumihito Sasamori; Shiro Handa (RWS, 2015)

Analytical Evaluation of Coverage Probability in Two-Tier Cognitive Femto Networks. - Fereidoun H. Panahi; Tomoaki Ohtsuki (VTC Spring, 2015)

Interference Alignment in Heterogeneous Networks Using Pico Cell Clustering. - Ryuma Seno; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (VTC Fall, 2015)

Analytical modeling of cognitive heterogeneous cellular networks over Nakagami-m fading. - Fereidoun H. Panahi; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2015)

Stochastic geometry modeling and analysis of cognitive heterogeneous cellular networks. - Fereidoun H. Panahi; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2015)

Iterative estimation of undesired signal power for superposed multicarrier transmission with channel estimation error. - Yohei Shibata; Naotoshi Yoda; Tomoaki Ohtsuki; Jun Mashino; Takatoshi Sugiyama (EURASIP J. Wirel. Commun. Netw., 2015)

Power-Absorption-Based Model for Power Compensation in WLAN Positioning Using Smartphone. - Masaaki Yamamoto; Tomoaki Ohtsuki (IEICE Trans. Commun., 2015)

Coalition Graph Game for Robust Routing in Cooperative Cognitive Radio Networks. - Xin Guan 003; Aohan Li; Zhipeng Cai 001; Tomoaki Ohtsuki (Mob. Networks Appl., 2015)

Signal Eigenvector-Based Device-Free Passive Localization Using Array Sensor. - Jihoon Hong; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2015)

Non-cooperative game-based packet ferry forwarding for sparse mobile wireless networks. - Xin Guan 003; Min Chen 003; Tomoaki Ohtsuki (Wirel. Commun. Mob. Comput., 2015)

Coordinated Non-Orthogonal Multiple Access (CO-NOMA). - Anthony Beylerian; Tomoaki Ohtsuki (GLOBECOM, 2016)

Sentiment Analysis in Twitter: From Classification to Quantification of Sentiments within Tweets. - Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2016)

Joint Interference Alignment and Power Allocation under Perfect and Imperfect CSI. - Fereidoun H. Panahi; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori; Kazuhiro Uehara (GLOBECOM, 2016)

Improvement of Blink Detection Using a Doppler Sensor Based on CFAR Processing. - Chihiro Tamba; Hirotaka Hayashi; Tomoaki Ohtsuki (GLOBECOM, 2016)

IGMM-Based Approach for Discovering Co-Located Mobile Users. - Pedro M. Varela; Jihoon Hong; Tomoaki Ohtsuki (GLOBECOM, 2016)

Room-level proximity detection based on RSS of dual-band Wi-Fi signals. - Yugo Agata; Jihoon Hong; Tomoaki Ohtsuki (ICC, 2016)

Sentiment analysis: From binary to multi-class classification: A pattern-based approach for multi-class sentiment analysis in Twitter. - Mondher Bouazizi; Tomoaki Ohtsuki (ICC, 2016)

Interference alignment and power allocation for multi-user MIMO interference channels. - Fereidoun H. Panahi; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori; Kazuhiro Uehara (ICC, 2016)

QoE and throughput aware radio resource allocation algorithm in LTE network with users using different applications. - Takahiro Hori; Tomoaki Ohtsuki (PIMRC, 2016)

Channel prediction for massive MIMO with channel compression based on principal component analysis. - Rei Nagashima; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori; Tadao Nakagawa (PIMRC, 2016)

Biometrie authentication using hand movement information from wrist-worn PPG sensors. - Tomoaki Ohtsuki; Hiroto Kamoi (PIMRC, 2016)

Heartbeat detection with Doppler radar based on estimation of average R-R interval using Viterbi algorithm. - Tomoaki Ohtsuki; Eriko Mogi (PIMRC, 2016)

Optimal impersonation of CSI for maximizing leaked information to untrusted relay in PLNC. - Osamu Takyu; Kengo Matsumoto; Tomoaki Ohtsuki; Takeo Fujii; Fumihito Sasamori; Shiro Handa (WCNC, 2016)

A Pattern-Based Approach for Sarcasm Detection on Twitter. - Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2016)

Discovering Co-Located Walking Groups of People Using iBeacon Technology. - Pedro M. Varela; Tomoaki Ohtsuki (IEEE Access, 2016)

Multi-point fairness in resource allocation for C-RAN downlink CoMP transmission. - Anthony Beylerian; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2016)

DOA estimation for wideband signals based on weighted Squared TOPS. - Hirotaka Hayashi; Tomoaki Ohtsuki (EURASIP J. Wirel. Commun. Netw., 2016)

Suppression of multiple wideband interferences based on superposition probability. - Yuto Kakizaki; Yohei Shibata; Tomoaki Ohtsuki; Jun Mashino (EURASIP J. Wirel. Commun. Netw., 2016)

A low-complexity cell clustering algorithm in dense small cell networks. - Ryuma Seno; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (EURASIP J. Wirel. Commun. Netw., 2016)

DOA Estimation Using Temporal Spatial Virtual Array Based on Doppler Shift with Adaptive PRI Control. - Hirotaka Hayashi; Tomoaki Ohtsuki (IEICE Trans. Commun., 2016)

Algorithm Design of Relative Magnitude Coefficients Using Brent's Method on the K-User MIMO-IFC. - Kunitaka Matsumura; Tomoaki Ohtsuki (IEICE Trans. Commun., 2016)

Intersection-based forwarding protocol for vehicular ad hoc networks. - Xin Guan 003; Yan Huang 032; Zhipeng Cai 001; Tomoaki Ohtsuki (Telecommun. Syst., 2016)

Impact of the CSI on the Performance of Cognitive Relay Networks With Partial Relay Selection. - Wael Jaafar; Tomoaki Ohtsuki; Wessam Ajib; David Haccoun (IEEE Trans. Veh. Technol., 2016)

Fair Pilot Assignment Based on AOA and Pathloss with Location Information in Massive MIMO. - Haruhi Echigo; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori (GLOBECOM, 2017)

Joint SDA-MAP Estimation of Channel and Interference Power in Superposed OFDM Transmission. - Yuto Kakizaki; Tomoaki Ohtsuki; Pooi-Yuen Kam; Kouhei Suzaki; Hirofumi Sasaki; Hideya So (GLOBECOM, 2017)

Energy-Efficient Channel Hopping Protocol for Cognitive Radio Networks. - Aohan Li; Guangjie Han; Tomoaki Ohtsuki (GLOBECOM, 2017)

Identification of High Yielding Investment Programs in Bitcoin via Transactions Pattern Analysis. - Kentaroh Toyoda; Tomoaki Ohtsuki; P. Takis Mathiopoulos (GLOBECOM, 2017)

Secure outage probability over κ-μ fading channels. - Shunya Iwata; Tomoaki Ohtsuki; Pooi Yuen Kam (ICC, 2017)

Heartbeat detection with Doppler radar based on spectrogram. - Eriko Mogi; Tomoaki Ohtsuki (ICC, 2017)

Q-learning based superposed band detection in multicarrier transmission. - Ali Shaikh; Fereidoun H. Panahi; Tomoaki Ohtsuki; Kouhei Suzaki; Hirofumi Sasaki; Hideya So; Tadao Nakagawa (ICC, 2017)

Design of privacy-preserving mobile Bitcoin client based on γ-deniability enabled bloom filter. - Kota Kanemura; Kentaroh Toyoda; Tomoaki Ohtsuki (PIMRC, 2017)

Green heterogeneous networks via an intelligent power control strategy and D2D communications. - Fereidoun H. Panahi; Farzad H. Panahi; Ghaith Hattab; Tomoaki Ohtsuki; Danijela Cabric (PIMRC, 2017)

Driver's blink detection using Doppler sensor. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (PIMRC, 2017)

Performance Analysis of PLC over Fading Channels with Colored Nakagami-m Background Noise. - Yun Ai; Tomoaki Ohtsuki; Michael Cheffena (VTC Spring, 2017)

Antenna Parameters Optimization in Self-Organizing Networks: Multi-Armed Bandits with Pareto Search. - Chaima Dhahri; Tomoaki Ohtsuki (VTC Fall, 2017)

Secure Channel Selection Using Multi-Armed Bandit Algorithm in Cognitive Radio Network. - Masahiro Endo; Tomoaki Ohtsuki; Takeo Fujii; Osamu Takyu (VTC Spring, 2017)

Performance Analysis of Physical Layer Security over Rician/Nakagami-m Fading Channels. - Shunya Iwata; Tomoaki Ohtsuki; Pooi Yuen Kam (VTC Spring, 2017)

A Pattern-Based Approach for Multi-Class Sentiment Analysis in Twitter. - Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2017)

Exploiting Interference for Capacity Improvement in Software-Defined Vehicular Networks. - Xin Guan 003; Yan Huang 032; Min Chen 003; Huayang Wu; Tomoaki Ohtsuki; Yan Zhang 002 (IEEE Access, 2017)

A Lower Bound on Secrecy Capacity for MIMO Wiretap Channel Aided by a Cooperative Jammer With Channel Estimation Error. - Shunya Iwata; Tomoaki Ohtsuki; Pooi-Yuen Kam (IEEE Access, 2017)

A Novel Blockchain-Based Product Ownership Management System (POMS) for Anti-Counterfeits in the Post Supply Chain. - Kentaroh Toyoda; P. Takis Mathiopoulos; Iwao Sasase; Tomoaki Ohtsuki (IEEE Access, 2017)

Novel Unsupervised SPITters Detection Scheme by Automatically Solving Unbalanced Situation. - Kentaroh Toyoda; Mirang Park; Naonobu Okazaki; Tomoaki Ohtsuki (IEEE Access, 2017)

Low Computational Complexity Direction-of-Arrival Estimation of Wideband Signal Sources Based on Squared TOPS. - Hirotaka Hayashi; Tomoaki Ohtsuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

A Smart City Based on Ambient Intelligence. - Tomoaki Ohtsuki (IEICE Trans. Commun., 2017)

Improvements of femto-base station resource utilisation and ABS assignment convergence for dynamic ABS assignment. - Masayoshi Ozawa; Tomoaki Ohtsuki (IET Commun., 2017)

IGMM-Based Co-Localization of Mobile Users With Ambient Radio Signals. - Pedro M. Varela; Jihoon Hong; Tomoaki Ohtsuki; Xiaoqi Qin (IEEE Internet Things J., 2017)

Joint Interference Alignment and Power Allocation for Multi-User MIMO Interference Channels Under Perfect and Imperfect CSI. - Fereidoun H. Panahi; Tomoaki Ohtsuki; Wenjie Jiang 002; Yasushi Takatori; Tadao Nakagawa (IEEE Trans. Green Commun. Netw., 2017)

A Convergence and Asymptotic Analysis of Nonlinear Separation Model. - Lu Wang 010; Tomoaki Ohtsuki (APSIPA, 2018)

Improved Sparse Adaptive Algorithms for Accurate Non-contact Heartbeat Detection Using Time-Window-Variation Technique. - Chen Ye 001; Kentaroh Toyoda; Tomoaki Ohtsuki (EMBC, 2018)

Fall Detection Using UHF Passive RFID Based on the Neighborhood Preservation Principle. - Hiroto Kamoi; Kentaroh Toyoda; Tomoaki Ohtsuki (GLOBECOM, 2018)

Enhanced Channel Hopping Algorithm for Heterogeneous Cognitive Radio Networks. - Aohan Li; Guangjie Han; Tomoaki Ohtsuki (GLOBECOM, 2018)

Learning-Based Optimal Channel Selection in the Presence of Jammer for Cognitive Radio Networks. - Aohan Li; Fereidoun H. Panahi; Tomoaki Ohtsuki; Guangjie Han (GLOBECOM, 2018)

A Low-Complexity High-Accuracy AR Based Channel Prediction Method for Interference Alignment. - Masayoshi Ozawa; Tomoaki Ohtsuki; Fereidoun H. Panahi; Wenjie Jiang 002; Yasushi Takatori; Tadao Nakagawa (GLOBECOM, 2018)

Signal Restoration Based on Temporal Structure and Multi-Layer Architecture. - Lu Wang 010; Tomoaki Ohtsuki (GLOBECOM, 2018)

Non-Contact Heartbeat Detection by MUSIC with Discrete Cosine Transform-Based Parameter Adjustment. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (GLOBECOM, 2018)

Doppler Analysis Based Fall Detection Using Array Antenna. - Yugo Agata; Tomoaki Ohtsuki; Kentaroh Toyoda (ICC, 2018)

Doppler Sensor-Based Blink Duration Estimation by Spectrogram Analysis. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (ICC, 2018)

Robust Heartbeat Detection with Doppler Radar Based on Stochastic Gradient Approach. - Chen Ye 001; Kentaroh Toyoda; Tomoaki Ohtsuki (ICC, 2018)

Time Series Analysis for Bitcoin Transactions: The Case of Pirate@40's HYIP Scheme. - Kentaroh Toyoda; Tomoaki Ohtsuki; P. Takis Mathiopoulos (ICDM Workshops, 2018)

Transmit control for secure information sharing in untrusted relay with two antennas. - Tetsuya Noguchi; Osamu Takyu; Fumihito Sasamori; Shiro Handa; Takeo Fujii; Tomoaki Ohtsuki (ICOIN, 2018)

Multi-Class Bitcoin-Enabled Service Identification Based on Transaction History Summarization. - Kentaroh Toyoda; Tomoaki Ohtsuki; P. Takis Mathiopoulos (iThings/GreenCom/CPSCom/SmartData, 2018)

Secure information sharing with mirroring null steering through untrusted relay with two antennas. - Tetsuya Noguchi; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki; Fumihito Sasamori; Shiro Handa (RWS, 2018)

Consideration of security for PLNC with untrusted relay in game theoretic perspective. - Yusuke Shirasaki; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki; Fumihito Sasamori; Shiro Handa (RWS, 2018)

Graph Coloring-Based Pilot Reuse with AOA and Distance in D2D Underlay Massive MIMO. - Haruhi Echigo; Tomoaki Ohtsuki (VTC Spring, 2018)

QoE-Aware Video Streaming Transmission Optimization Method for Playout Threshold Adjustment in LTE. - Yan Qi; Tomoaki Ohtsuki (VTC Spring, 2018)

Multi-Class Sentiment Analysis in Twitter: What if Classification is Not the Answer. - Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2018)

Precoding Aided Generalized Spatial Modulation With an Iterative Greedy Algorithm. - Yuwen Cao; Tomoaki Ohtsuki; Xue-Qin Jiang 001 (IEEE Access, 2018)

Nonlinear Blind Source Separation Unifying Vanishing Component Analysis and Temporal Structure. - Lu Wang 010; Tomoaki Ohtsuki (IEEE Access, 2018)

Hate Speech on Twitter: A Pragmatic Approach to Collect Hateful and Offensive Expressions and Perform Hate Speech Detection. - Hajime Watanabe; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2018)

Spectrogram-Based Non-Contact RRI Estimation by Accurate Peak Detection Algorithm. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (IEEE Access, 2018)

Recovery of Block-Structured Sparse Signal Using Block-Sparse Adaptive Algorithms via Dynamic Grouping. - Chen Ye 001; Guan Gui 001; Li Xu 004; Tomoaki Ohtsuki (IEEE Access, 2018)

On Physical Layer Security of α-η-κ-μ Fading Channels. - Aashish Mathur; Yun Ai; Manav R. Bhatnagar; Michael Cheffena; Tomoaki Ohtsuki (IEEE Commun. Lett., 2018)

A closed-form expression for performance optimization of subcarrier intensity QAM signals-based relay-added FSO systems with APD. - Ha Duyen Trung; Nguyen Tien Hoa 001; Nguyen Huu Trung; Tomoaki Ohtsuki (Phys. Commun., 2018)

Green Heterogeneous Networks via an Intelligent Sleep/Wake-Up Mechanism and D2D Communications. - Fereidoun H. Panahi; Farzad H. Panahi; Ghaith Hattab; Tomoaki Ohtsuki; Danijela Cabric (IEEE Trans. Green Commun. Netw., 2018)

Novel CA-CFAR Approach for Improvement of Doppler Sensor-based Heart Rate Variability Estimation. - Ryosuke Hiromatsu; Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (EMBC, 2019)

MUSIC-based Non-contact Heart Rate Estimation with Adaptive Window Size Setting. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (EMBC, 2019)

Dual-Ascent Inspired Iterative Transmit Precoding Approaches for Multiple Access Spatial Modulation. - Yuwen Cao; Tomoaki Ohtsuki (GLOBECOM, 2019)

FMCW Radar-Based Anomaly Detection in Toilet by Supervised Machine Learning Classifier. - Wataru Takabatake; Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki; Yohei Shibata; Atsushi Nagate (GLOBECOM, 2019)

CNN-Based Respiration Rate Estimation in Indoor Environments via MIMO FMCW Radar. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (GLOBECOM, 2019)

Polynomial Networks Representation of Nonlinear Mixtures with Application in Underdetermined Blind Source Separation. - Lu Wang 010; Tomoaki Ohtsuki (ICASSP, 2019)

Identification of Darknet Markets' Bitcoin Addresses by Voting Per-address Classification Results. - Kota Kanemura; Kentaroh Toyoda; Tomoaki Ohtsuki (IEEE ICBC, 2019)

Underdetermined Blind Separation using Multi-Subspace Representation in Time-Frequency Domain. - Lu Wang 010; Tomoaki Ohtsuki (ICC, 2019)

Precoding Aided Generalized Spatial Modulation with K Transmit Antenna Groups. - Yuwen Cao; Tomoaki Ohtsuki (ICC, 2019)

Spectrogram-Based Simultaneous Heartbeat and Blink Detection using Doppler Sensor. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (ICC, 2019)

Non-Negative Matrix Factorization-Based Blind Source Separation for Non-Contact Heartbeat Detection. - Chen Ye 001; Kentaroh Toyoda; Tomoaki Ohtsuki (ICC, 2019)

Performance Evaluation of Information-Sharing Scheme Among Multiple Destinations with Mirroring Null Steering in Single Antenna Networks. - Tetsuya Noguchi; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki (ICOIN, 2019)

Overloaded Wireless MIMO Switching for Secure Wireless Communication Exchanging to Untrusted Relay. - Arata Takahashi; Fumihito Sasamori; Shiro Handa; Osamu Takyu; Takeo Fujii; Tomoaki Ohtsuki (ICUFN, 2019)

Low Complexity and High Accuracy Channel Interpolation with Dividing URA into Small URAs for 3D Massive MIMO. - Masumi Kuriyama; Tomoaki Ohtsuki (VTC Fall, 2019)

Multiple Radios for Fast Rendezvous in Heterogeneous Cognitive Radio Networks. - Aohan Li; Guangjie Han; Tomoaki Ohtsuki (IEEE Access, 2019)

A Novel Methodology for HYIP Operators' Bitcoin Addresses Identification. - Kentaroh Toyoda; P. Takis Mathiopoulos; Tomoaki Ohtsuki (IEEE Access, 2019)

Underdetermined Blind Source Separation With Multi-Subspace for Nonlinear Representation. - Lu Wang 010; Tomoaki Ohtsuki (IEEE Access, 2019)

Doppler Sensor-Based Blink Duration Estimation by Analysis of Eyelids Closing and Opening Behavior on Spectrogram. - Kohei Yamamoto; Kentaroh Toyoda; Tomoaki Ohtsuki (IEEE Access, 2019)

Multi-class sentiment analysis on twitter: Classification performance and challenges. - Mondher Bouazizi; Tomoaki Ohtsuki (Big Data Min. Anal., 2019)

A Stochastic Gradient Approach for Robust Heartbeat Detection With Doppler Radar Using Time-Window-Variation Technique. - Chen Ye 001; Kentaroh Toyoda; Tomoaki Ohtsuki (IEEE Trans. Biomed. Eng., 2019)

A Fast Blind Scheme With Full Rendezvous Diversity for Heterogeneous Cognitive Radio Networks. - Aohan Li; Guangjie Han; Tomoaki Ohtsuki (IEEE Trans. Cogn. Commun. Netw., 2019)

Orthogonality Structure Designs for Generalized Precoding Aided Spatial Modulation. - Yuwen Cao; Tomoaki Ohtsuki (IEEE Wirel. Commun. Lett., 2019)

An Infrared Array Sensor-Based Method for Localizing and Counting People for Health Care and Monitoring. - Mondher Bouazizi; Tomoaki Ohtsuki (EMBC, 2020)

Online Recursive ICA Algorithm Used for Motor Imagery EEG Signal. - Xueyi Lin; Lu Wang 010; Tomoaki Ohtsuki (EMBC, 2020)

Joint Multiple Subspace-based BSS Method for Fetal Heart Rate Extraction from Non-invasive Recordings. - Lu Wang 010; Tomoaki Ohtsuki; Kazunari Owada; Naoki Honma; Hayato Hayashi (EMBC, 2020)

Deep Learning Aided Channel Estimation for Massive MIMO with Pilot Contamination. - Hiroki Hirose; Tomoaki Ohtsuki; Guan Gui 001 (GLOBECOM, 2020)

Wi-Fi-CSI-based Fall Detection by Spectrogram Analysis with CNN. - Takashi Nakamura; Mondher Bouazizi; Kohei Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2020)

Multi-Configuration Selection Mechanisms and Analog Precoding for Signature Spatial Modulation. - Yuwen Cao; Tomoaki Ohtsuki (ICC, 2020)

Discrete Polar Decoder using Information Bottleneck Method. - Akira Yamada 008; Tomoaki Ohtsuki (ICC, 2020)

Deep Clustering with LSTM for Vital Signs Separation in Contact-free Heart Rate Estimation. - Chen Ye 001; Guan Gui 001; Tomoaki Ohtsuki (ICC, 2020)

User Association to Overcome Human Blockage at mmWave Cellular Networks. - S. Yuva Kumar; Tomoaki Ohtsuki (VTC Spring, 2020)

On-Road Object Identification with Time Series Automotive Millimeter-wave Radar Information. - Takashi Nakamura; Kentaroh Toyoda; Tomoaki Ohtsuki (VTC Spring, 2020)

Damping Factor Learning of BP Detection with Node Selection in Massive MIMO using Neural Network. - Junta Tachibana; Tomoaki Ohtsuki (VTC Spring, 2020)

Interference Control of LTE-LAA using Q-learning with HARQ. - Kenshiro Wada; Tomoaki Ohtsuki (VTC Spring, 2020)

Low-Complexity Subspace MMSE Channel Estimation in Massive MU-MIMO System. - Yunfeng Deng; Tomoaki Ohtsuki (IEEE Access, 2020)

Energy Efficiency Analysis in Cache-Enabled D2D-Aided Heterogeneous Cellular Networks. - Farzad H. Panahi; Fereidoun H. Panahi; Tomoaki Ohtsuki (IEEE Access, 2020)

Learning and Analysis of Damping Factor in Massive MIMO Detection Using BP Algorithm With Node Selection. - Junta Tachibana; Tomoaki Ohtsuki (IEEE Access, 2020)

ECG Signal Reconstruction via Doppler Sensor by Hybrid Deep Learning Model With CNN and LSTM. - Kohei Yamamoto; Ryosuke Hiromatsu; Tomoaki Ohtsuki (IEEE Access, 2020)

Non-Contact Heartbeat Detection by Heartbeat Signal Reconstruction Based on Spectrogram Analysis With Convolutional LSTM. - Kohei Yamamoto; Tomoaki Ohtsuki (IEEE Access, 2020)

Transfer Learning for Semi-Supervised Automatic Modulation Classification in ZF-MIMO Systems. - Yu Wang 078; Guan Gui 001; Haris Gacanin; Tomoaki Ohtsuki; Hikmet Sari; Fumiyuki Adachi (IEEE J. Emerg. Sel. Topics Circuits Syst., 2020)

Evaluating smart grid renewable energy accommodation capability with uncertain generation using deep reinforcement learning. - Yongnan Liu; Xin Guan 003; Jun Li 036; Di Sun; Tomoaki Ohtsuki; Mohammad Mehedi Hassan; Abdulhameed Alelaiwi (Future Gener. Comput. Syst., 2020)

Deep Reinforcement Learning for Economic Dispatch of Virtual Power Plant in Internet of Energy. - Lin Lin 002; Xin Guan 003; Yu Peng 001; Ning Wang 001; Sabita Maharjan; Tomoaki Ohtsuki (IEEE Internet Things J., 2020)

Blind Source Separation on Non-Contact Heartbeat Detection by Non-Negative Matrix Factorization Algorithms. - Chen Ye 001; Kentaroh Toyoda; Tomoaki Ohtsuki (IEEE Trans. Biomed. Eng., 2020)

Dual-Ascent Inspired Transmit Precoding for Evolving Multiple-Access Spatial Modulation. - Yuwen Cao; Tomoaki Ohtsuki; Tony Q. S. Quek (IEEE Trans. Commun., 2020)

Risk Assessment of Private Information Inference for Motion Sensor Embedded IoT Devices. - Yan Huang 032; Xin Guan 003; Hongyang Chen; Yi Liang; Shanshan Yuan; Tomoaki Ohtsuki (IEEE Trans. Emerg. Top. Comput. Intell., 2020)

Influence and Mitigation of Pedestrian Blockage at mmWave Cellular Networks. - S. Yuva Kumar; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2020)

Semi-Supervised Machine Learning Aided Anomaly Detection Method in Cellular Networks. - Yutao Lu; Juan Wang 008; Miao Liu 002; Kaixuan Zhang; Guan Gui 001; Tomoaki Ohtsuki; Fumiyuki Adachi (IEEE Trans. Veh. Technol., 2020)

Surveillance Plane Aided Air-Ground Integrated Vehicular Networks: Architectures, Applications, and Potential. - Jinlong Sun; Fan Liu; Yuzhi Zhou; Guan Gui 001; Tomoaki Ohtsuki; Song Guo 001; Fumiyuki Adachi (IEEE Wirel. Commun., 2020)

A Novel Approach for Inter-User Distance Estimation in 5G mmWave Networks Using Deep Learning. - Mondher Bouazizi; Siyuan Yang 002; Yuwen Cao; Tomoaki Ohtsuki (APCC, 2021)

Fetal Heart Rate Detection Using First Derivative of ECG Waveform and Multiple Weighting Functions. - Natsuho Niida; Lu Wang 010; Tomoaki Ohtsuki; Kazunari Owada; Naoki Honma; Hayato Hayashi (EMBC, 2021)

An Autoencoder-Based Fetal Heart Rate Detector for Noninvasive Recordings. - Abuzar Ahmad Qureshi; Lu Wang 010; Tomoaki Ohtsuki; Kazunari Owada; Naoki Honma; Hayato Hayashi (EMBC, 2021)

Activity Detection using 2D LIDAR for Healthcare and Monitoring. - Mondher Bouazizi; Chen Ye 001; Tomoaki Ohtsuki (GLOBECOM, 2021)

Non-contact Heartbeat Detection Based on Beam Diversity Using Multibeam Doppler Sensor. - Tsukiko Kitagawa; Kohei Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2021)

Remote Sensing of Heartbeat based on Space Diversity Using MIMO FMCW Radar. - Kohei Yamamoto; Koji Endo; Tomoaki Ohtsuki (GLOBECOM, 2021)

Noncontact Heartbeat Detection by Viterbi Algorithm with Fusion of Beat-Beat Interval and Deep Learning-Driven Branch Metrics. - Kohei Yamamoto; Tomoaki Ohtsuki (ICASSP, 2021)

From Multiset Events to Signal Restoration via Tensor Decomposition Based Separation Learning. - Lu Wang 010; Tomoaki Ohtsuki (ICC, 2021)

Mobility-Aware Routing and Caching: A Federated Learning Assisted Approach. - Yuwen Cao; Setareh Maghsudi; Tomoaki Ohtsuki (ICC, 2021)

Non-contact Blood Pressure Measurement using Doppler Radar based on Waveform Analysis by LSTM. - Shuzo Ishizaka; Kohei Yamamoto; Tomoaki Ohtsuki (ICC, 2021)

All-in-One Hate Speech Detectors May not be what You Want. - Mondher Bouazizi; Natsuho Niida; Tomoaki Ohtsuki (ICSIM, 2021)

Weighted-Beam Superposition for mmWave Massive MIMO-NOMA Systems. - Hanyue Dai; Yue Yin; Hao Huang 008; Jie Yang 027; Tomoaki Ohtsuki; Hikmet Sari; Fumiyuki Adachi (VTC Fall, 2021)

Fast Beamforming Design Method for IRS-Aided mmWave MISO Systems. - Zhengran He; Hao Huang 008; Jie Yang 027; Guan Gui 001; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin (VTC Fall, 2021)

Lightweight Network Design Based on ResNet Structure for Modulation Recognition. - Xiao Lu; Mengyuan Tao; Xue Fu; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari (VTC Fall, 2021)

HSRRS Classification Method Based on Deep Transfer Learning And Multi-Feature Fusion. - Ziteng Wang; Zhaojie Li; Yu Wang 078; Wenmei Li; Jie Yang 027; Tomoaki Ohtsuki (VTC Fall, 2021)

Multi-Rate Compression for Downlink CSI Based on Transfer Learning in FDD Massive MIMO Systems. - Yuting Wang; Jinlong Sun; Jie Wang 024; Jie Yang 027; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin (VTC Fall, 2021)

An Effective Radar Signal Recognition Method Using Neural Architecture Search. - Min Zhang; Wang Luo; Yu Wang 078; Jinlong Sun; Jie Yang 027; Tomoaki Ohtsuki (VTC Fall, 2021)

Decentralized Learning-based Scenario Identification Method for Intelligent Vehicular Communications. - Yaru Zhou; Yu Wang 078; Pengfei Liu; Jie Yang 027; Tomoaki Ohtsuki; Hikmet Sari (VTC Fall, 2021)

Lightweight Network and Model Aggregation for Automatic Modulation Classification in Wireless Communications. - Xue Fu; Guan Gui 001; Yu Wang 078; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin; Fumiyuki Adachi (WCNC, 2021)

A Novel Compression CSI Feedback based on Deep Learning for FDD Massive MIMO Systems. - Yuting Wang; Yibin Zhang; Jinlong Sun; Guan Gui 001; Tomoaki Ohtsuki; Fumiyuki Adachi (WCNC, 2021)

Differentiable Architecture Search-Based Automatic Modulation Classification. - Xun Wei; Wang Luo; Xixi Zhang 001; Jie Yang 027; Guan Gui 001; Tomoaki Ohtsuki (WCNC, 2021)

A Novel Approach based on Lightweight Deep Neural Network for Network Intrusion Detection. - Ruijie Zhao 001; Zhaojie Li; Zhi Xue; Tomoaki Ohtsuki; Guan Gui 001 (WCNC, 2021)

Data Augmentation for Sentiment Analysis Using Sentence Compression-Based SeqGAN With Data Screening. - Jiawei Luo 005; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2021)

A Novel Hybrid Deep Learning Model for Activity Detection Using Wide-Angle Low-Resolution Infrared Array Sensor. - Muthukumar Krishnan Arumugasamy; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2021)

Discrete BP Polar Decoder Using Information Bottleneck Method. - Akira Yamada 008; Tomoaki Ohtsuki (IEEE Access, 2021)

Spatial Degrees of Freedom Exploration and Analog Beamforming Designs for Signature Spatial Modulation. - Yuwen Cao; Tomoaki Ohtsuki (IEICE Trans. Commun., 2021)

Overloaded Wireless MIMO Switching for Information Exchanging through Untrusted Relay in Secure Wireless Communication. - Arata Takahashi; Osamu Takyu; Hiroshi Fujiwara; Takeo Fujii; Tomoaki Ohtsuki (IEICE Trans. Commun., 2021)

Distributed Deep Reinforcement Learning for Renewable Energy Accommodation Assessment With Communication Uncertainty in Internet of Energy. - Dawei Fang; Xin Guan 003; Yu Peng 001; Hongyang Chen; Tomoaki Ohtsuki; Zhu Han 001 (IEEE Internet Things J., 2021)

An Efficient Specific Emitter Identification Method Based on Complex-Valued Neural Networks and Network Compression. - Yu Wang 078; Guan Gui 001; Haris Gacanin; Tomoaki Ohtsuki; Octavia A. Dobre; H. Vincent Poor (IEEE J. Sel. Areas Commun., 2021)

Downlink CSI Feedback Algorithm With Deep Transfer Learning for FDD Massive MIMO Systems. - Jun Zeng 005; Jinlong Sun; Guan Gui 001; Bamidele Adebisi; Tomoaki Ohtsuki; Haris Gacanin; Hikmet Sari (IEEE Trans. Cogn. Commun. Netw., 2021)

Joint UL/DL Resource Allocation for UAV-Aided Full-Duplex NOMA Communications. - Wenjuan Shi; Yanjing Sun; Miao Liu 002; Hua Xu; Guan Gui 001; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin; Fumiyuki Adachi (IEEE Trans. Commun., 2021)

Compressive Sampled CSI Feedback Method Based on Deep Learning for FDD Massive MIMO Systems. - Jie Wang 024; Guan Gui 001; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin; Hikmet Sari (IEEE Trans. Commun., 2021)

Robust Resource Allocation for Two-Tier HetNets: An Interference-Efficiency Perspective. - Yongjun Xu 002; Guan Gui 001; Tomoaki Ohtsuki; Haris Gacanin; Bamidele Adebisi; Hikmet Sari; Fumiyuki Adachi (IEEE Trans. Green Commun. Netw., 2021)

A Deep Learning-Based Low Overhead Beam Selection in mmWave Communications. - Haruhi Echigo; Yuwen Cao; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2021)

Multi-Task Learning for Generalized Automatic Modulation Classification Under Non-Gaussian Noise With Varying SNR Conditions. - Yu Wang 078; Guan Gui 001; Tomoaki Ohtsuki; Fumiyuki Adachi (IEEE Trans. Wirel. Commun., 2021)

Federated Learning for DL-CSI Prediction in FDD Massive MIMO Systems. - Weihao Hou; Jinlong Sun; Guan Gui 001; Tomoaki Ohtsuki; Ahmet M. Elbir; Haris Gacanin; Hikmet Sari (IEEE Wirel. Commun. Lett., 2021)

SALDR: Joint Self-Attention Learning and Dense Refine for Massive MIMO CSI Feedback With Multiple Compression Ratio. - Xuan Song; Jun Wang 048; Jie Wang 024; Guan Gui 001; Tomoaki Ohtsuki; Haris Gacanin; Hikmet Sari (IEEE Wirel. Commun. Lett., 2021)

An Efficient Intrusion Detection Method Based on Dynamic Autoencoder. - Ruijie Zhao 001; Jie Yin; Zhi Xue; Guan Gui 001; Bamidele Adebisi; Tomoaki Ohtsuki; Haris Gacanin; Hikmet Sari (IEEE Wirel. Commun. Lett., 2021)

Autoencoder-based Pilot Pattern Design for CDL Channels. - Yuta Yamada; Tomoaki Ohtsuki (APCC, 2022)

Non-contact Blood Pressure Estimation Method Based on Blood Pressure Category Classification. - Shuzo Ishizaka; Kohei Yamamoto; Tomoaki Ohtsuki (EMBC, 2022)

Non-invasive Fetal ECG Signal Quality Assessment based on Unsupervised Learning Approach. - Xintong Shi; Kohei Yamamoto; Tomoaki Ohtsuki; Yutaka Matsui; Kazunari Owada (EMBC, 2022)

Arterial Blood Pressure Estimation Method from Electrocardiogram Signals using U-Net. - Rikuto Yoshizawa; Kohei Yamamoto; Tomoaki Ohtsuki (EMBC, 2022)

Social Robot Detection Using RoBERTa Classifier and Random Forest Regressor with Similarity Analysis. - Yeyang Chen; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2022)

Fetal Arrhythmia Detection based on Deep Learning using Fetal ECG Signals. - Sara Nakatani; Kohei Yamamoto; Tomoaki Ohtsuki (GLOBECOM, 2022)

Unsupervised Representation Learning-based Doppler Ultrasound Signal Quality Assessment. - Xintong Shi; Kohei Yamamoto; Tomoaki Ohtsuki; Yutaka Matsui; Kazunari Owada (GLOBECOM, 2022)

Heartbeat Detection Using 3D Lidar and MIMO Doppler Radar. - Mondher Bouazizi; Kohei Yamamoto; Tomoaki Ohtsuki (ICC, 2022)

Dynamic Antenna Control for HAPS Using Fuzzy Q-Learning in Multi-Cell Configuration. - Kenshiro Wada; Siyuan Yang 002; Mondher Bouazizi; Tomoaki Ohtsuki; Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate (ICC, 2022)

A Semi-Supervised Federated Learning Scheme via Knowledge Distillation for Intrusion Detection. - Ruijie Zhao 001; Linbo Yang; Yijun Wang; Zhi Xue; Guan Gui 001; Tomoaki Ohtsuki (ICC, 2022)

Max-Min Fair 3D Trajectory Planning for Solar-Powered UAV-Assisted Data Collection. - Chao Sun; Xinxuan Xiong; Wei Ni 001; Tomoaki Ohtsuki; Xin Wang 003 (ICCC, 2022)

Attention-CNN-Aided Specific Emitter Identification Method with Limited Radio Frequency Dataset. - Shufei Wang; Yibin Zhang; Jinlong Sun; Tomoaki Ohtsuki; Guan Gui 001 (ICCT, 2022)

Dementia Detection Using Language Models and Transfer Learning. - Mondher Bouazizi; Chuheng Zheng; Tomoaki Ohtsuki (ICSIM, 2022)

Smartphone-Aided Human Activity Recognition Method using Residual Multi-Layer Perceptron. - Shang Shi; Yu Wang 078; Heng Dong; Guan Gui 001; Tomoaki Ohtsuki (INFOCOM Workshops, 2022)

Adaptive DNN-based CSI Feedback with Quantization for FDD Massive MIMO Systems. - Junjie Gao; Mondher Bouazizi; Tomoaki Ohtsuki; Guan Gui 001 (VTC Fall, 2022)

Joint Weighted and Truncated Nuclear Norm Minimization for Matrix Completion-Assisted mmWave MIMO Channel Estimation. - Yunyi Li; Jianxun Liu; Chaoyang Chen 001; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari (VTC Spring, 2022)

An Effective Radio Frequency Signal Classification Method Based on Multi-Task Learning Mechanism. - Hongwei Liu; Chengyao Hao; Yang Peng; Yu Wang 078; Tomoaki Ohtsuki; Guan Gui 001 (VTC Fall, 2022)

Co-Evolutionary Dynamic Cell optimization Algorithm for HAPS Mobile Communications. - Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate; Tomoaki Ohtsuki (VTC Spring, 2022)

Cross-Person Activity Recognition Method Using Snapshot Ensemble Learning. - Siyuan Xu; Zhengran He; Wenjuan Shi; Yu Wang 078; Tomoaki Ohtsuki; Guan Gui 001 (VTC Fall, 2022)

Dynamic Antenna Control for HAPS Using Geometry-based Method in Multi-Cell Configuration. - Siyuan Yang 002; Mondher Bouazizi; Tomoaki Ohtsuki; Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate (VTC Spring, 2022)

Data Augmentation Aided Few-Shot Learning for Specific Emitter Identification. - Xixi Zhang 001; Yu Wang 078; Yibin Zhang; Yun Lin 005; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari (VTC Fall, 2022)

Sarcasm Over Time and Across Platforms: Does the Way We Express Sarcasm Change? - Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2022)

Multibeam Doppler Sensor-Based Non-Contact Heartbeat Detection Using Beam Diversity. - Tsukiko Kitagawa; Kohei Yamamoto; Koji Endo; Tomoaki Ohtsuki (IEEE Access, 2022)

Two-Step Dynamic Cell Optimization Algorithm for HAPS Mobile Communications. - Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate; Tomoaki Ohtsuki (IEEE Access, 2022)

An Evaluation on Information Composition in Dementia Detection Based on Speech. - Chuheng Zheng; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Access, 2022)

Global Communications Newsletter. - Stefano Bregni; Tomoaki Ohtsuki; Douglas N. Zuckerman; Tim Weil 001; Mark Milliman; Keattisak Sripimanwat; Umair Ahmed Korai; Bhawani Shankar Chowdhry; Aftab Ahmed Memon (IEEE Commun. Mag., 2022)

Low-Resolution Infrared Array Sensor for Counting and Localizing People Indoors: When Low End Technology Meets Cutting Edge Deep Learning Techniques. - Mondher Bouazizi; Chen Ye 001; Tomoaki Ohtsuki (Inf., 2022)

2-D LIDAR-Based Approach for Activity Identification and Fall Detection. - Mondher Bouazizi; Chen Ye 001; Tomoaki Ohtsuki (IEEE Internet Things J., 2022)

Constructing Mobile Crowdsourced COVID-19 Vulnerability Map With Geo-Indistinguishability. - Rui Chen 026; Liang Li; Ying Ma; Yanmin Gong 001; Yuanxiong Guo; Tomoaki Ohtsuki; Miao Pan (IEEE Internet Things J., 2022)

Wi-Fi-Based Fall Detection Using Spectrogram Image of Channel State Information. - Takashi Nakamura; Mondher Bouazizi; Kohei Yamamoto; Tomoaki Ohtsuki (IEEE Internet Things J., 2022)

A Novel Intrusion Detection Method Based on Lightweight Neural Network for Internet of Things. - Ruijie Zhao 001; Guan Gui 001; Zhi Xue; Jie Yin; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin (IEEE Internet Things J., 2022)

Blockchain-Based Task Offloading for Edge Computing on Low-Quality Data via Distributed Learning in the Internet of Energy. - Yongnan Liu; Xin Guan 003; Yu Peng 001; Hongyang Chen; Tomoaki Ohtsuki; Zhu Han 001 (IEEE J. Sel. Areas Commun., 2022)

An Infrared Array Sensor-Based Approach for Activity Detection, Combining Low-Cost Technology with Advanced Deep Learning Techniques. - Muthukumar Krishnan Arumugasamy; Mondher Bouazizi; Tomoaki Ohtsuki (Sensors, 2022)

A Denoising Method Using Deep Image Prior to Human-Target Detection Using MIMO FMCW Radar. - Koji Endo; Kohei Yamamoto; Tomoaki Ohtsuki (Sensors, 2022)

Inter-User Distance Estimation Based on a New Type of Fingerprint in Massive MIMO System for COVID-19 Contact Detection. - Siyuan Yang 002; Mondher Bouazizi; Yuwen Cao; Tomoaki Ohtsuki (Sensors, 2022)

A Multi-Layer Hybrid Network With Its Application in Fetal Heart Rate Monitoring. - Lu Wang 010; Tomoaki Ohtsuki; Kazunari Owada; Naoki Honma; Hayato Hayashi (IEEE Signal Process. Lett., 2022)

Fully Convolutional Neural Network-Based CSI Limited Feedback for FDD Massive MIMO Systems. - Guanghui Fan; Jinlong Sun; Guan Gui 001; Haris Gacanin; Bamidele Adebisi; Tomoaki Ohtsuki (IEEE Trans. Cogn. Commun. Netw., 2022)

Lightweight Automatic Modulation Classification Based on Decentralized Learning. - Xue Fu; Guan Gui 001; Yu Wang 078; Tomoaki Ohtsuki; Bamidele Adebisi; Haris Gacanin; Fumiyuki Adachi (IEEE Trans. Cogn. Commun. Netw., 2022)

Edge Device Identification Based on Federated Learning and Network Traffic Feature Engineering. - Zhimin He; Jie Yin; Yu Wang 078; Guan Gui 001; Bamidele Adebisi; Tomoaki Ohtsuki; Haris Gacanin; Hikmet Sari (IEEE Trans. Cogn. Commun. Netw., 2022)

Make Smart Decisions Faster: Deciding D2D Resource Allocation via Stackelberg Game Guided Multi-Agent Deep Reinforcement Learning. - Dian Shi; Liang Li; Tomoaki Ohtsuki; Miao Pan; Zhu Han 001; H. Vincent Poor (IEEE Trans. Mob. Comput., 2022)

Sub-GHz Two-Way Ranging Based on Phase Detection for Remote Keyless Entry Systems. - Ichiro Seto; Shoji Otaka; Hiroshi Yoshida; Katsuya Nonin; Masaki Nishikawa; Takayuki Kato; Yoshiharu Nito; Hideyuki Ishiwata; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2022)

An Adaptive Vehicle Clustering Algorithm Based on Power Minimization in Vehicular Ad-Hoc Networks. - Haitao Zhao 004; Jiawen Tang; Bamidele Adebisi; Tomoaki Ohtsuki; Guan Gui 001; Hongbo Zhu 002 (IEEE Trans. Veh. Technol., 2022)

An LSTM-Based Approach for Fall Detection Using Accelerometer-Collected Data. - Yoshiya Uotani; Kohei Yamamoto; Chen Ye 001; Mondher Bouazizi; Tomoaki Ohtsuki (APCC, 2023)

Evaluation of Source Data Selection for DTL Based CSI Feedback Method in FDD Massive MIMO Systems. - Mayuko Inoue; Tomoaki Ohtsuki; Kohei Yamamoto; Guan Gui 001 (CCNC, 2023)

A Novel Approach for Activity, Fall and Gait Detection Using Multiple 2D LiDARs. - Mondher Bouazizi; Kevin Feghoul; Alejandro Lorite Mora; Tomoaki Ohtsuki (GLOBECOM, 2023)

A GAN-Based Approach for ECG Reconstruction from Doppler Sensor Signals. - Mondher Bouazizi; Danyuan Yu; Kevin Feghoul; Tomoaki Ohtsuki (GLOBECOM, 2023)

K-Means Clustering-Aided Dynamic Multi-Cell Optimization Algorithm for HAPS. - Wei Dai; Siyuan Yang 002; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2023)

Depression Detection via User Behavior and Tweets. - Nianyi Ji; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2023)

HAPS Trajectory Optimization Based on Throughput Heat Map. - Tatsuya Mori; Tomoaki Ohtsuki (GLOBECOM, 2023)

Improving Heart Rate Range Classification Using Doppler Radar with GAN-based Data Augmentation. - Danyuan Yu; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2023)

Non-Contact Blood Pressure Estimation Using Accurate Cardiac Movements Extracted by Hidden Semi-Markov Model. - Shengze Wang 005; Mondher Bouazizi; Tomoaki Ohtsuki (ICC, 2023)

Dynamic Antenna Control for HAPS Using Mean Field Reinforcement Learning in Multi-Cell Configuration. - Siyuan Yang 002; Mondher Bouazizi; Tomoaki Ohtsuki (ICC, 2023)

Arterial Blood Pressure Waveform Estimation from Photoplethysmogram Under Inter-Subject Paradigm Using Subject-Distinguishable Dataset by U-Net and Domain Adversarial Training. - Rikuto Yoshizawa; Kohei Yamamoto; Tomoaki Ohtsuki (ICC, 2023)

Adversarial Learning Aided Malicious Network Traffic Detection Based on EDE Framework. - Lanping Zhang; Yu Wang 078; Tomoaki Ohtsuki; Bamidele Adebisi; Hsiao-Chun Wu; Guan Gui 001 (ICCC, 2023)

Semi-Supervised Malware Traffic Classification Via Consistency Regularization and Pseudo-Labeling. - Qianlong Jiao; Xixi Zhang 001; Weijie Zhang; Fucheng Miao; Tomoaki Ohtsuki; Bamidele Adebisi; Yu Wang 078; Guan Gui 001 (ICCT, 2023)

A Few-Shot Malware Traffic Classification Method Using Knowledge Transfer Learning. - Maoyang Qin; Xixi Zhang 001; Yu Wang 078; Tomoaki Ohtsuki; Hikmet Sari; Guan Gui 001 (ICCT, 2023)

Radio Frequency Fingerprint Identification Based on Length-Robust Representation and Incremental Learning. - Feng Shi; Ziqin Feng; Fucheng Miao; Xue Fu; Bamidele Adebisi; Tomoaki Ohtsuki; Hikmet Sari; Guan Gui 001 (ICCT, 2023)

Multilayer Attention Mechanism for Change Detection in SAR Image Spatial-Frequency Domain. - Lirui Ma; Lu Wang 010; Chunhui Zhao 003; Jiahui E; Tomoaki Ohtsuki (ICIP, 2023)

Heterogeneous Image Change Detection Based on Deep Image Translation and Feature Refinement-Aggregation. - Tianrui Zhao; Lu Wang 010; Chunhui Zhao 003; Tian Liu; Tomoaki Ohtsuki (ICIP, 2023)

A Robust Multi-Frame mmWave Radar Point Cloud-Based Human Skeleton Estimation Approach with Point Cloud Reliability Assessment. - Xintong Shi; Tomoaki Ohtsuki (SENSORS, 2023)

Automatic Modulation Classification Based on Decentralized Learning and Model Averaging. - Yunhe Xu; Min Ma; Xue Fu; Yu Wang 078; Guan Gui 001; Tomoaki Ohtsuki (INFOCOM Workshops, 2023)

Radio Frequency Signal Dataset Generation Based on LTE System and Variable Channels. - Shupeng Zhang; Yibin Zhang; Xixi Zhang 001; Yang Peng; Jinlong Sun; Guan Gui 001; Tomoaki Ohtsuki (INFOCOM Workshops, 2023)

Deep Reinforcement Learning Aided Online Trajectory Optimization of Cellular-Connected UAVs with Offline Map Reconstruction. - Qing Hao; Haitao Zhao 004; Hao Huang 008; Guan Gui 001; Tomoaki Ohtsuki; Fumiyuki Adachi (VTC2023-Spring, 2023)

NASEI: Neural Architecture Search-Based Specific Emitter Identification Method. - Yuxuan Huang; Xixi Zhang 001; Yu Wang 078; Donglai Jiao; Guan Gui 001; Tomoaki Ohtsuki (VTC2023-Spring, 2023)

HAPS Cell Design Method for Coexistence on Terrestrial Mobile Networks. - Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate; Tomoaki Ohtsuki (VTC2023-Spring, 2023)

Communication Efficient Heterogeneous Federated Learning based on Model Similarity. - Zhaojie Li; Tomoaki Ohtsuki; Guan Gui 001 (WCNC, 2023)

Multi-Person Position Estimation Based on Correlation Between Received Signals Using MIMO FMCW Radar. - Koji Endo; Tomohiro Ishikawa; Kohei Yamamoto; Tomoaki Ohtsuki (IEEE Access, 2023)

Heart action monitoring from pulse signals using a growing hybrid polynomial network. - Lu Wang 010; Chunhui Zhao 003; P. Takis Mathiopoulos; Tomoaki Ohtsuki (Eng. Appl. Artif. Intell., 2023)

Deep Reinforcement Learning Evolution Algorithm for Dynamic Antenna Control in Multi-Cell Configuration HAPS System. - Siyuan Yang 002; Mondher Bouazizi; Tomoaki Ohtsuki; Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate (Future Internet, 2023)

SAR Image Change Detection in Spatial-Frequency Domain Based on Attention Mechanism and Gated Linear Unit. - Chunhui Zhao 003; Lirui Ma; Lu Wang 010; Tomoaki Ohtsuki; P. Takis Mathiopoulos; Yong Wang 004 (IEEE Geosci. Remote. Sens. Lett., 2023)

A Reinforcement Learning-Based Fire Warning and Suppression System Using Unmanned Aerial Vehicles. - Fereidoun H. Panahi; Farzad H. Panahi; Tomoaki Ohtsuki (IEEE Trans. Instrum. Meas., 2023)

Machine Learning in 6G Wireless Communications. - Tomoaki Ohtsuki (IEICE Trans. Commun., 2023)

Distributed Feature Selection Considering Data Pricing Based on Edge Computing in Electricity Spot Markets. - Yufei Hu; Xin Guan 003; Benran Hu 002; Yongnan Liu; Hongyang Chen; Tomoaki Ohtsuki (IEEE Internet Things J., 2023)

A 2D-Lidar-Equipped Unmanned Robot-Based Approach for Indoor Human Activity Detection. - Mondher Bouazizi; Alejandro Lorite Mora; Tomoaki Ohtsuki (Sensors, 2023)

Semisupervised Federated-Learning-Based Intrusion Detection Method for Internet of Things. - Ruijie Zhao 001; Yijun Wang; Zhi Xue; Tomoaki Ohtsuki; Bamidele Adebisi; Guan Gui 001 (IEEE Internet Things J., 2023)

Graph Learning Empowered Situation Awareness in Internet of Energy With Graph Digital Twin. - Liyan Sui; Xin Guan 003; Chen Cui; Haiyang Jiang 003; Heng Pan; Tomoaki Ohtsuki (IEEE Trans. Ind. Informatics, 2023)

An Intelligent Path Planning Mechanism for Firefighting in Wireless Sensor and Actor Networks. - Farzad H. Panahi; Fereidoun H. Panahi; Tomoaki Ohtsuki (IEEE Internet Things J., 2023)

Intelligent Cellular Offloading With VLC-Enabled Unmanned Aerial Vehicles. - Fereidoun H. Panahi; Farzad H. Panahi; Tomoaki Ohtsuki (IEEE Internet Things J., 2023)

Resource Allocation for Secure MIMO-SWIPT Systems in the Presence of Multi-Antenna Eavesdropper in Vehicular Networks. - Vieeralingaam Ganapathy; Ramanathan Ramachandran 001; Tomoaki Ohtsuki (Sensors, 2023)

Deep Learning and Image Super-Resolution-Guided Beam and Power Allocation for mmWave Networks. - Yuwen Cao; Tomoaki Ohtsuki; Setareh Maghsudi; Tony Q. S. Quek (IEEE Trans. Veh. Technol., 2023)

DRL based low carbon economic dispatch by considering power transmission safety limitations in internet of energy. - Renjie Zhu; Xin Guan 003; Jun Zheng; Ning Wang 001; Haiyang Jiang 003; Chen Cui; Tomoaki Ohtsuki (Internet Things, 2023)

A Robust Approach Assisted by Signal Quality Assessment for Fetal Heart Rate Estimation from Doppler Ultrasound Signal. - Xintong Shi; Natsuho Niida; Kohei Yamamoto; Tomoaki Ohtsuki; Yutaka Matsui; Kazunari Owada (Sensors, 2023)

Joint Optimization of User Pairing, Power Allocation and Content Server Deployment in NOMA-Assisted Wireless Caching Networks. - Yue Yin; Tomoaki Ohtsuki; Guan Gui 001; Chau Yuen; Hsiao-Chun Wu; Hikmet Sari (IEEE Trans. Veh. Technol., 2023)

Max-Min Fair 3D Trajectory Design and Transmission Scheduling for Solar-Powered Fixed-Wing UAV-Assisted Data Collection. - Chao Sun; Xinxuan Xiong; Zhiyuan Zhai; Wei Ni 001; Tomoaki Ohtsuki; Xin Wang 003 (IEEE Trans. Wirel. Commun., 2023)

Source CSI Dataset for Multi-Task CSI Feedback. - Mayuko Inoue; Tomoaki Ohtsuki (CCNC, 2024)

Deep Learning-based Open-set Person Identification using Radar Extracted Cardiac Signals. - Zelin Xing; Mondher Bouazizi; Tomoaki Ohtsuki (EMBC, 2024)

A CSI-based Cross-subject Transfer Learning Method Using Network Freezing. - Zhengran He; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2024)

Rough-to-Fine Model-based Non-contact Heart Rate Estimation using MIMO FMCW Radar. - Xintong Shi; Mondher Bouazizi; Tomoaki Ohtsuki (GLOBECOM, 2024)

Remote Inter-beat Interval Estimation: A Signal Reconstruction Approach with Multi-channel Input and Channel-Wise Attention Mechanism. - Shengze Wang 005; Mondher Bouazizi; Tomoaki Ohtsuki (HealthCom, 2024)

Chirp Correction and Phase Accumulation-Linear Interpolation-Assisted ICEEMDAN-Based Heart Rate Estimation from MIMO FMCW Radar. - Miiru Mutsukawa; Xintong Shi; Tomoaki Ohtsuki (HealthCom, 2024)

Camera-Based Stress Detection Using Face-Related and Emotion-Related Features. - Ryota Ogasawara; Mondher Bouazizi; Tomoaki Ohtsuki (HealthCom, 2024)

Deep Sub-Image Sampling Based Defense Against Spatial-Domain Adversarial Steganography. - Xinyu Huang; Yuwen Cao; Tomoaki Ohtsuki (ICASSP Workshops, 2024)

Age-Based Federated Learning Approach to In-Network Caching: An Online Scheduling Policy. - Yuwen Cao; Setareh Maghsudi; Tomoaki Ohtsuki (ICC, 2024)

ECGDiff: Conditional Diffusion Model for ECG Reconstruction from Doppler Signals. - Kevin Feghoul; Mondher Bouazizi; Rayan Feghoul; Tomoaki Ohtsuki (ICC, 2024)

mmGAT: Pose Estimation by Graph Attention with Mutual Features from mmWave Radar Point Cloud. - Abdullah Al Masud; Xintong Shi; Mondher Bouazizi; Tomoaki Ohtsuki (ICC, 2024)

3D-LiDAR-Based Fall Detection by Dynamic Non-Linear Mapping with LSTM. - Xiang Meng; Mondher Bouazizi; Tomoaki Ohtsuki (ICC, 2024)

DTL-Based CSI Feedback Combined with Continual Learning in FDD Massive MIMO Systems. - Mayuko Inoue; Tomoaki Ohtsuki; Mondher Bouazizi (ICNC, 2024)

Multi-Dimensional Representation for Semantic Communication: A New Horizon for Customized Visualization of Shared Knowledge. - Mondher Bouazizi; Tomoaki Ohtsuki (VTC Fall, 2024)

A Low-Complexity Clustering-Aided DQN Method for Dynamic Antenna Control in HAPS. - Mondher Bouazizi; Siyuan Yang 002; Tomoaki Ohtsuki (VTC Spring, 2024)

Coverage and Rate Performance for Distributed Multi-RIS-Assisted mmWave Communications. - Yuwen Cao; Xiaowen Wu; Jiguang He; Tomoaki Ohtsuki (VTC Fall, 2024)

Hypersphere Projection-Guided Radio Frequency Fingerprinting Authentication in the Open World. - Xue Fu; Yu Wang 078; Yun Lin 005; Qianyun Zhang 001; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari (VTC Spring, 2024)

Beamforming Design using UE Positions and 3D Terrain-Building in HAPS System. - Zhaojie Li; Siyuan Yang 002; Yue Yin; Mondher Bouazizi; Tomoaki Ohtsuki (VTC Fall, 2024)

Low Complexity CSI Feedback Method Using Reformer. - Yuki Saito; Mondher Bouazizi; Tomoaki Ohtsuki (VTC Fall, 2024)

Cramér-Rao Lower Bound and Fairness Optimization in STAR-RIS Assisted ISAC Systems. - Ruidong Wang; Yuwen Cao; Tomoaki Ohtsuki; Jiguang He (VTC Fall, 2024)

Enhanced User Clustering and Pairing Scheme for NOMA-Aided UAV Networks. - Yue Yin; Mondher Bouazizi; Siyuan Yang 002; Tomoaki Ohtsuki (VTC Fall, 2024)

Multi-UAV-Assisted Emergency Caching Networks: UAV Location and NOMA Power Optimization. - Yue Yin; Tomoaki Ohtsuki (VTC Fall, 2024)

Enhanced Resource Allocation in Vehicular Networks via Multi-Agent Reinforcement Learning. - Yu Zhang; Shufei Wang; Minyu Hua; Yibin Zhang; Yu Wang 078; Tomoaki Ohtsuki; Hikmet Sari; Guan Gui 001 (VTC Spring, 2024)

Massive MIMO Belief Propagation Detection Using DIP with DNN-Trained Scaling Factor. - Junta Tachibana; Mondher Bouazizi; Tomoaki Ohtsuki (WCNC, 2024)

Toward Building Trust in Machine Learning Models: Quantifying the Explainability by SHAP and References to Human Strategy. - Zhaopeng Li; Mondher Bouazizi; Tomoaki Ohtsuki; Masakuni Ishii; Eri Nakahara (IEEE Access, 2024)

A Comparative Study of Methods of Person Identification Using Radar-Extracted Heartbeat Signals. - Kai Liu; Mondher Bouazizi; Zelin Xing; Tomoaki Ohtsuki (IEEE Access, 2024)

People Identification in Private Car Using 3D LiDAR With Generative Image Inpainting and YOLOv5. - Weirong Shao; Mondher Bouazizi; Xiang Meng; Tomoaki Ohtsuki (IEEE Access, 2024)

HAPS Cell Design Method for Coverage Extension Considering Coexistence on Terrestrial Mobile Networks. - Yohei Shibata; Wataru Takabatake; Kenji Hoshino; Atsushi Nagate; Tomoaki Ohtsuki (IEEE Access, 2024)

Joint intelligent optimizing economic dispatch and electric vehicles charging in 5G vehicular networks. - Gang Pan; Xin Guan 003; Haiyang Jiang 003; Yongnan Liu; Huayang Wu; Hongyang Chen; Tomoaki Ohtsuki; Zhu Han 001 (Comput. Networks, 2024)

Differential Privacy Preserving Distributed Quantum Computing. - Hui Zhong; Keyi Ju; Jiachen Shen; Xinyue Zhang 001; Xiaoqi Qin; Tomoaki Ohtsuki; Miao Pan; Zhu Han 001 (CoRR, 2024)

Dementia Detection from Speech: What If Language Models Are Not the Answer? - Mondher Bouazizi; Chuheng Zheng; Siyuan Yang 002; Tomoaki Ohtsuki (Inf., 2024)

SAR Image Wake Detection Based on Pseudo-Siamese Structure and Multidomain Feature Fusion. - Chunhui Zhao 003; Haodong Liu; Lu Wang 010; Tomoaki Ohtsuki; Fumiyuki Adachi (IEEE Geosci. Remote. Sens. Lett., 2024)

Mobility-Aware Routing and Caching in Small Cell Networks Using Federated Learning. - Yuwen Cao; Setareh Maghsudi; Tomoaki Ohtsuki; Tony Q. S. Quek (IEEE Trans. Commun., 2024)

Enhanced Few-Shot Malware Traffic Classification via Integrating Knowledge Transfer With Neural Architecture Search. - Xixi Zhang 001; Qin Wang 002; Maoyang Qin; Yu Wang 078; Tomoaki Ohtsuki; Bamidele Adebisi; Hikmet Sari; Guan Gui 001 (IEEE Trans. Inf. Forensics Secur., 2024)

Deep Reinforcement Learning Based Data-Driven Mapping Mechanism of Digital Twin for Internet of Energy. - Siyu Xu; Xin Guan 003; Yu Peng 001; Yang Liu 320; Chen Cui; Hongyang Chen; Tomoaki Ohtsuki; Zhu Han 001 (IEEE Trans. Netw. Sci. Eng., 2024)

Activity Detection in Indoor Environments Using Multiple 2D Lidars. - Mondher Bouazizi; Alejandro Lorite Mora; Kevin Feghoul; Tomoaki Ohtsuki (Sensors, 2024)

Specific Emitter Identification Using Adaptive Signal Feature Embedded Knowledge Graph. - Minyu Hua; Yibin Zhang; Jinlong Sun; Bamidele Adebisi; Tomoaki Ohtsuki; Guan Gui 001; Hsiao-Chun Wu; Hikmet Sari (IEEE Internet Things J., 2024)

Online Trajectory Optimization for Energy-Efficient Cellular-Connected UAVs With Map Reconstruction. - Haitao Zhao 004; Qing Hao; Hao Huang 008; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari; Fumiyuki Adachi (IEEE Trans. Veh. Technol., 2024)

Self-Supervised Learning Malware Traffic Classification Based on Masked Autoencoder. - Ke Xu; Xixi Zhang 001; Yu Wang 078; Tomoaki Ohtsuki; Bamidele Adebisi; Hikmet Sari; Guan Gui 001 (IEEE Internet Things J., 2024)

Deep Learning Methods for Secure IoT SWIPT Networks. - Vieeralingaam Ganapathy; Ramanathan Ramachandran 001; Tomoaki Ohtsuki (IEEE Internet Things J., 2024)

Advancing Malware Detection in Network Traffic With Self-Paced Class Incremental Learning. - Xiaohu Xu; Xi-Xi Zhang 001; Qianyun Zhang 001; Yu Wang 078; Bamidele Adebisi; Tomoaki Ohtsuki; Hikmet Sari; Guan Gui 001 (IEEE Internet Things J., 2024)

Time-Efficient Neural-Network-Based Dynamic Area Optimization Algorithm for High-Altitude Platform Station Mobile Communications. - Wataru Takabatake; Yohei Shibata; Kenji Hoshino; Tomoaki Ohtsuki (Future Internet, 2024)

Regularized Multi-Label Learning Empowered Joint Activity Recognition and Indoor Localization With CSI Fingerprints. - Yu Wang 078; Haitao Zhao 004; Tomoaki Ohtsuki; Hikmet Sari; Guan Gui 001 (IEEE Trans. Wirel. Commun., 2024)

Toward Robust Open-Set Radiofrequency Signal Identification in Internet of Things Using Hypersphere Manifold Embedding. - Xue Fu; Yu Wang 078; Yun Lin 005; Tomoaki Ohtsuki; Guan Gui 001; Hikmet Sari (IEEE Internet Things J., 2024)

Correlation Analysis of Objective Features and Online Meeting Quality. - Ryosuke Oba; Chuheng Zheng; Wataru Akahori; Masanori Yamada; Miki Yokoyama; Masakuni Ishii; Tomoaki Ohtsuki (HCI (40), 2025)

Source Channel Model Selection for Downlink CSI Feedback Estimation using Transfer Learning in Massive MIMO System. - Liu Jingyu; Mondher Bouazizi; Tomoaki Ohtsuki (ICNC, 2025)

Enhancing Dementia Detection: Augmenting the Face Mesh. - Chuheng Zheng; Mondher Bouazizi; Tomoaki Ohtsuki; Momoko Kitazawa; Toshiro Horigome; Taishiro Kishimoto (ISBI, 2025)

Energy Efficient Transmission Parameters Selection Method Using Reinforcement Learning in Distributed LoRa Networks. - Ryotai Airiyoshi; Mikio Hasegawa; Tomoaki Ohtsuki; Aohan Li (WCNC, 2025)

Channel-Robust Few-Shot Specific Emitter Identification Using Meta-Feature Augmentation. - Xue Fu; Francesca Meneghello 001; Yu Wang 078; Tomoaki Ohtsuki; Chau Yuen; Guan Gui 001; Hikmet Sari (WCNC, 2025)

Deep Learning-Based Channel Estimation to Mitigate Channel Aging in Massive MIMO With Pilot Contamination. - Hiroki Hirose; Siyuan Yang 002; Tomoaki Ohtsuki; Mondher Bouazizi (IEEE Access, 2025)

Face Mesh for Dementia Detection: Evaluating Data Augmentation in Deep Learning and Traditional Machine Learning. - Chuheng Zheng; Mondher Bouazizi; Taichi Okunishi; Tomoaki Ohtsuki; Momoko Kitazawa; Toshiro Horigome; Taishiro Kishimoto (IEEE Access, 2025)

Heterogeneous multi-agent deep reinforcement learning based low carbon emission task offloading in mobile edge computing. - Xiongjie Zhou; Xin Guan 003; Di Sun; Xiaoguang Zhang; Zhaogong Zhang; Tomoaki Ohtsuki (Comput. Commun., 2025)

A Clustering-Aided Optimization Algorithm for Antenna Beamforming in Multicell HAPS Systems. - Wei Dai; Siyuan Yang 002; Yue Yin; Mondher Bouazizi; Tomoaki Ohtsuki (IEEE Internet Things J., 2025)

A Rapid SAR Image Simulation Method for Ship Wakes Coupled With Sea Waves Using Fluid Velocity Potential. - Chunhui Zhao 003; Kaiyu Li; Lu Wang 010; Tomoaki Ohtsuki; Fumiyuki Adachi (IEEE Signal Process. Lett., 2025)

SAR Images Change Detection Based on Attention Mechanism-Convolutional Wavelet Neural Network. - Jiahui E; Lu Wang 010; Chunhui Zhao 003; P. Takis Mathiopoulos; Tomoaki Ohtsuki; Fumiyuki Adachi (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2025)

Malware Traffic Classification via Expandable Class Incremental Learning With Architecture Search. - Xixi Zhang 001; Yu Wang 078; Tomoaki Ohtsuki; Guan Gui 001; Chau Yuen; Marco Di Renzo; Hikmet Sari (IEEE Trans. Inf. Forensics Secur., 2025)

Memristor-Based Meta-Learning for Fast mmWave Beam Prediction in Non-Stationary Environments. - Yuwen Cao; Wenqin Lu; Tomoaki Ohtsuki; Setareh Maghsudi; Xueqin Jiang 001; Charalampos C. Tsimenidis (CoRR, 2025)

MobiLLM: Enabling LLM Fine-Tuning on the Mobile Device via Server Assisted Side Tuning. - Liang Li; Xingke Yang; Wen Wu 003; Hao Wang 003; Tomoaki Ohtsuki; Xin Fu; Miao Pan; Xuemin Shen (CoRR, 2025)

An Ensemble Learning-Based Fault Detection Method for Vehicular Ad Hoc Networks in Intelligent Transportation Systems. - Jiaxi Liu; Haitao Zhao 004; Peiyi Han; Guan Gui 001; Tomoaki Ohtsuki; Hikmet Sari; Fumiyuki Adachi (IEEE Trans. Veh. Technol., 2025)

Avoiding Shortcuts: Enhancing Channel-Robust Specific Emitter Identification via Single-Source Domain Generalization. - Yu Wang 078; Tomoaki Ohtsuki; Zhi Sun; Dusit Niyato; Xianbin Wang 001; Guan Gui 001 (IEEE Trans. Wirel. Commun., 2025)

Wi-Fi Sensing Techniques for Human Activity Recognition: Brief Survey, Potential Challenges, and Research Directions. - Fucheng Miao; Youxiang Huang; Zhiyi Lu; Tomoaki Ohtsuki; Guan Gui 001; Hikmet Sari (ACM Comput. Surv., 2025)

Dementia and MCI Detection Based on Comprehensive Facial Expression Analysis From Videos During Conversation. - Taichi Okunishi; Chuheng Zheng; Mondher Bouazizi; Tomoaki Ohtsuki; Momoko Kitazawa; Toshiro Horigome; Taishiro Kishimoto (IEEE J. Biomed. Health Informatics, 2025)

Black-Box Edge AI Model Selection with Conformal Latency and Accuracy Guarantees. - Anders E. Kalør; Tomoaki Ohtsuki (CoRR, 2025)

Loss-Adapter: Addressing Network Packet Loss in Distributed Inference for Lossy IoT Environments. - Zhangcheng Hou; Tomoaki Ohtsuki (IEEE Internet Things J., 2025)

Indoor Human Activity Recognition Using Multiple Dynamic Nonlinear Mapping Applied to 3-D LiDAR-Collected Data. - Xiang Meng; Mondher Bouazizi; Zhaojie Li; Tomoaki Ohtsuki (IEEE Internet Things J., 2025)

PAE MobiLLM: Privacy-Aware and Efficient LLM Fine-Tuning on the Mobile Device via Additive Side-Tuning. - Xingke Yang; Liang Li; Zhiyi Wan; Sicong Li; Hao Wang 003; Xiaoqi Qin; Jiang Liu; Tomoaki Ohtsuki; Xin Fu; Miao Pan (CoRR, 2025)

A Cross-Subject Transfer Learning Method for CSI-Based Wireless Sensing. - Zhengran He; Mondher Bouazizi; Guan Gui 001; Tomoaki Ohtsuki (IEEE Internet Things J., 2025)

Robust Cross-Scenario WiFi Wireless Sensing Using Incremental Learning and Elastic Weight Consolidation Loss. - Zhengran He; Mondher Bouazizi; Yue Yin; Guan Gui 001; Tomoaki Ohtsuki (IEEE Internet Things J., 2025)

Joint Angle-Based User Selection and Multiagent Reinforcement Learning for Dynamic Beamforming in HAPS-Assisted IoT Vehicular Networks. - Siyuan Yang 002; Tomoaki Ohtsuki; Xueqin Jiang 001 (IEEE Internet Things J., 2025)

Behavioral Modeling of Power Amplifiers Leveraging Multi-Channel Convolutional Long Short-Term Deep Neural Network. - Ruiheng Li; Zhisheng Yao; Yu Wang 078; Yun Lin 005; Tomoaki Ohtsuki; Guan Gui 001; Hikmet Sari (IEEE Trans. Veh. Technol., 2025)

Self-Supervised Learning Enhanced Channel Estimation in Massive MIMO System With Low-Resolution ADCs. - Guijun Liu; Yuwen Cao; Tomoaki Ohtsuki; Tony Q. S. Quek (IEEE Wirel. Commun. Lett., 2025)

Lightweight CSI-Based Human Activity Recognition for Multitask IoT Applications. - Chenchen Liu; Fucheng Miao; Yiting Chen; Jiangbo Wu; Hong Wan; Tiantian Tang; Tomoaki Ohtsuki; Guan Gui 001; Hikmet Sari (IEEE Internet Things J., 2025)

Improved Deep Learning Methods for Beamforming in Secure SWIPT Networks. - Vieeralingaam Ganapathy; Ramanathan Ramachandran 001; Tomoaki Ohtsuki (IEEE Trans. Green Commun. Netw., 2025)