Consideration on performance of the CMA adaptive array antenna for 16 QAM signals. - Nobuyoshi Kikuma; Kiyofumi Takai; Kentaro Nishimori; Fuminobu Saito; Naoki Inagaki (PIMRC, 1995)

Novel SDMA system adopting spatial and polarization control with terminal polarization assignment. - Kazuhiro Komiya; Kentaro Nishimori; Keizo Cho; Toshikazu Hori (VTC Fall, 2001)

Automatic calibration method of adaptive array utilizing signal circulation for linear array. - Kentaro Nishimori; Keizo Cho; Toshikazu Hori (VTC Fall, 2001)

Automatic calibration method using transmitting signals of an adaptive array for TDD systems. - Kentaro Nishimori; Keizo Cho; Yasushi Takatori; Toshikazu Hori (IEEE Trans. Veh. Technol., 2001)

Novel MIMO-SDMA configuration adopting directivity and polarization control. - Kentaro Nishimori; Yasushi Takatori; Riichi Kudo; Nobuhiko Tachikawa; Koichi Tsunekawa (PIMRC, 2004)

Frequency Correlation Characteristics Due to Antenna Configurations in Broadband MIMO Transmission. - Kentaro Nishimori; Nobuhiko Tachikawa; Yasushi Takatori; Riichi Kudo; Koichi Tsunekawa (IEICE Trans. Commun., 2005)

Performance Evaluation of 8×8 Multi-User MIMO-OFDM Testbed in an Actual Indoor Environment. - Kentaro Nishimori; Riichi Kudo; Yasushi Takatori; Atsushi Ohta; Koichi Tsunekawa (PIMRC, 2006)

Experimental Evaluation of Eigenvector Beamforming Method with 8X4 MIMO-OFDM Testbed. - Riichi Kudo; Kentaro Nishimori; Yasushi Takatori; Koichi Tsunekawa (VTC Spring, 2006)

Novel Downlink Beamforming Method Using Selective STBC with Common Eigenvectors for MIMO-OFDM Systems. - Riichi Kudo; Yasushi Takatori; Kentaro Nishimori; Koichi Tsunekawa (IEICE Trans. Commun., 2006)

User Selection Method for Block Diagonalization in Multiuser MIMO Systems. - Riichi Kudo; Yasushi Takatori; Kentaro Nishimori; Atsushi Ohta; Shuji Kubota (GLOBECOM, 2007)

New Simple Capacity Estimation Method for Multiuser Block Diagonalization Transmission. - Riichi Kudo; Yasushi Takatori; Atsushi Ohta; Kentaro Nishimori; Shuji Kubota (VTC Spring, 2007)

Spatial Opportunity for Cognitive Radio Systems with Heterogeneous Path Loss Conditions. - Kentaro Nishimori; Rocco Di Taranto; Hiroyuki Yomo; Petar Popovski; Yasushi Takatori; Ramjee Prasad; Shuji Kubota (VTC Spring, 2007)

Rate Adaptation for Cognitive Radio under Interference from Primary Spectrum User - Petar Popovski; Hiroyuki Yomo; Kentaro Nishimori; Rocco Di Taranto (CoRR, 2007)

New Downlink Beamforming Method for Cooperative Multiple Access Point Systems. - Riichi Kudo; Yasushi Takatori; Kentaro Nishimori; Atsushi Ohta; Shuji Kubota (IEICE Trans. Commun., 2007)

New Robust Beamforming Method for Frequency Offsets in Uplink Multiuser OFDM-MIMO. - Yasushi Takatori; Riichi Kudo; Atsushi Ohta; Koichi Ishihara; Kentaro Nishimori; Shuji Kubota (IEICE Trans. Commun., 2007)

Distributed Interference Cancellation for Dynamic Spectrum Sharing. - Kentaro Nishimori; Hiroyuki Yomo; Petar Popovski; Yasushi Takatori; Ramjee Prasad; Shuji Kubota (ICC, 2008)

Multiuser Detection Method Robust against Timing Offset for OFDM Uplink Transmission. - Koichi Ishihara; Yasushi Takatori; Kentaro Nishimori; Kazuyasu Okada (VTC Spring, 2008)

Antenna Selection Method for Terminal Antennas Employing Orthogonal Polarizations and Patterns in Outdoor Multiuser MIMO System. - Naoki Honma; Riichi Kudo; Kentaro Nishimori; Yasushi Takatori; Atsushi Ohta; Shuji Kubota (IEICE Trans. Commun., 2008)

Interference Cancellation and Avoidance for Secondary Users Co-existing with TDD-based Primary Systems. - Kentaro Nishimori; Hiroyuki Yomo; Petar Popovski; Yasushi Takatori; Ramjee Prasad; Shuji Kubota (Wirel. Pers. Commun., 2008)

Cognitive Mesh Network Under Interference from Primary User. - Rocco Di Taranto; Hiroyuki Yomo; Petar Popovski; Kentaro Nishimori; Ramjee Prasad (Wirel. Pers. Commun., 2008)

Multi site MIMO channel analysis at 4.85GHz in outdoor environment. - Tomoki Murakami; Naoki Honma; Kentaro Nishimori; Riichi Kudo; Yasushi Takatori; Masato Mizoguchi (PIMRC, 2009)

16x16 Multiuser MIMO Testbed Employing Simple Adaptive Modulation Scheme. - Kentaro Nishimori; Riichi Kudo; Naoki Honma; Yasushi Takatori; Masato Mizoguchi (VTC Spring, 2009)

Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems. - Koichi Ishihara; Yasushi Takatori; Kentaro Nishimori; Kazuyasu Okada (IEICE Trans. Commun., 2009)

A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems. - Riichi Kudo; Yasushi Takatori; Kentaro Nishimori; Atsushi Ohta; Shuji Kubota; Masato Mizoguchi (IEICE Trans. Commun., 2009)

A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics. - Naoki Honma; Kentaro Nishimori; Riichi Kudo; Yasushi Takatori; Takefumi Hiraguri; Masato Mizoguchi (IEICE Trans. Commun., 2010)

A Novel Interference Avoidance Technique on Mobile Wireless Routers Using IEEE802.11n PSMP. - Akira Kishida; Takefumi Hiraguri; Masakatsu Ogawa; Kentaro Nishimori; Naoki Honma; Tetsu Sakata (IEICE Trans. Commun., 2010)

16×16 MIMO Testbed for MU-MIMO Downlink Transmission. - Kentaro Nishimori; Riichi Kudo; Naoki Honma; Yasushi Takatori; Masato Mizoguchi (IEICE Trans. Commun., 2010)

Transmission History Based Distributed Adaptive Contention Window Adjustment Algorithm Cooperating with Automatic Rate Fallback for Wireless LANs. - Masakatsu Ogawa; Takefumi Hiraguri; Kentaro Nishimori; Kazuhiro Takaya; Kazuo Murakawa (IEICE Trans. Commun., 2010)

Spatial Domain Resource Sharing for Overlapping Cells in Indoor Environment. - Riichi Kudo; Yasushi Takatori; Kentaro Nishimori; Takeo Ichikawa; Tomoki Murakami; Masato Mizoguchi; Masahiro Morikura (Int. J. Digit. Multim. Broadcast., 2010)

Transmission Queuing Schemes for Improving Downlink Throughput on IEEE 802.11 WLANs. - Takefumi Hiraguri; Toshiyuki Ogawa; Takahiro Ueno; Kentaro Nishimori; Kenya Jin'no (ICCCN, 2011)

Interference Cancellation Using Relay Station in Heterogeneous Networks. - Kentaro Nishimori; Koshiro Kitao; Tetsuro Imai (VTC Fall, 2011)

Analyses of Antenna Displacement in Short-Range MIMO Transmission over Millimeter-Wave. - Ken Hiraga; Tomohiro Seki; Kentaro Nishimori; Kenjiro Nishikawa; Ichihiko Toyoda; Kazuhiro Uehara (IEICE Trans. Commun., 2011)

Development of Multi Channel Ad-Hoc Network System. - Kentaro Nishimori; Takefumi Hiraguri; Masakatsu Ogawa; Naoki Honma (IEICE Trans. Commun., 2011)

Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models. - Kentaro Nishimori; Rocco Di Taranto; Hiroyuki Yomo; Petar Popovski (IEICE Trans. Commun., 2011)

Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment. - Masakatsu Ogawa; Takefumi Hiraguri; Kentaro Nishimori; Naoki Honma; Kazuhiro Takaya; Kazuo Murakawa (IEICE Trans. Commun., 2011)

On the Transmission Method for Short-Range MIMO Communication. - Kentaro Nishimori; Naoki Honma; Tomohiro Seki; Ken Hiraga (IEEE Trans. Veh. Technol., 2011)

Distributed Interference Cancellation for Cognitive Radios Using Periodic Signals of the Primary System. - Kentaro Nishimori; Hiroyuki Yomo; Petar Popovski (IEEE Trans. Wirel. Commun., 2011)

Web-GIS-based emergency rescue to track triage information - System configuration and experimental results. - Hideo Makino; Masaki Hatanaka; Satoshi Abe; Kohei Komatsu; Hiroei Imai; Kentaro Nishimori; Masashi Takahashi; Hidenori Kinoshita (UPINLBS, 2012)

Effectiveness of Short-Range MIMO Using Dual-Polarized Antenna. - Ken Hiraga; Tomohiro Seki; Kentaro Nishimori; Kazuhiro Uehara (IEICE Trans. Commun., 2012)

Single Antenna Relay System Using De-Noise and Forward Scheme for MIMO Transmission. - Kosuke Kinami; Naoki Honma; Kentaro Nishimori (IEICE Trans. Commun., 2012)

Indoor positioning using a high-speed, fish-eye lens-equipped camera in Visible Light Communication. - Yohei Nakazawa; Hideo Makino; Kentaro Nishimori; Daisuke Wakatsuki; Hideki Komagata (IPIN, 2013)

Performance Evaluation of Adaptive Array Using ZF and MMSE Algorithms with Measured K-Factor and Correlation in Heterogeneous Networks. - Kentaro Nishimori; Keisuke Kusumi; Misaki Horio; Koshiro Kitao; Tetsuro Imai (VTC Fall, 2013)

Non-iterative Algorithm of MIMO Adaptive Array Based on Correlation Matrix Including Parasitic Antennas. - Naoki Honma; Kentaro Nishimori; Takefumi Hiraguri; Yoshitaka Tsunekawa (IEICE Trans. Commun., 2013)

Compact Antenna Arrangement for MIMO Sensor in Indoor Environment. - Naoki Honma; Kentaro Nishimori; Hiroaki Sato; Yoshitaka Tsunekawa (IEICE Trans. Commun., 2013)

User-Oriented QoS Control Method Based on CSMA/CA for IEEE802.11 Wireless LAN System. - Akira Kishida; Masashi Iwabuchi; Toshiyuki Shintaku; Tetsu Sakata; Takefumi Hiraguri; Kentaro Nishimori (IEICE Trans. Commun., 2013)

Interference Rejection Characteristics by Adaptive Array at User Equipment Using Measured K-Factor in Heterogeneous Networks. - Kentaro Nishimori; Keisuke Kusumi; Misaki Horio; Koshiro Kitao; Tetsuro Imai (IEICE Trans. Commun., 2013)

Intruder Detection Performance of SIMO and MIMO Sensors with Same Number of Channel Responses. - Keita Ushiki; Kentaro Nishimori; Naoki Honma; Hideo Makino (IEICE Trans. Commun., 2013)

Queuing Scheme for Improved Downlink Throughput on WLANs. - Takefumi Hiraguri; Kengo Nagata; Toshiyuki Ogawa; Takahiro Ueno; Kenya Jin'no; Kentaro Nishimori (Wirel. Pers. Commun., 2013)

LED-tracking and ID-estimation for indoor positioning using visible light communication. - Yohei Nakazawa; Hideo Makino; Kentaro Nishimori; Daisuke Wakatsuki; Hideki Komagata (IPIN, 2014)

Analysis evaluation of collision detection scheme utilizing MIMO transmission. - Yoshiaki Morino; Takefumi Hiraguri; Toshiyuki Ogawa; Hideaki Yoshino; Kentaro Nishimori (WiMob, 2014)

A Study of Short-Range MIMO Transmission Utilizing Polarization Multiplexing for the Simplification of Decoding. - Ken Hiraga; Kazumitsu Sakamoto; Kentaro Nishimori; Tomohiro Seki; Tadao Nakagawa; Kazuhiro Uehara (IEICE Trans. Commun., 2014)

Analog Decoding Method for Simplified Short-Range MIMO Transmission. - Ryochi Kataoka; Kentaro Nishimori; Takefumi Hiraguri; Naoki Honma; Tomohiro Seki; Ken Hiraga; Hideo Makino (IEICE Trans. Commun., 2014)

Transmission Rate by User Antenna Selection for Block Diagonalization Based Multiuser MIMO System. - Kentaro Nishimori; Takefumi Hiraguri; Hideo Makino (IEICE Trans. Commun., 2014)

Multicast Transmission Access Control Methods for Various Wireless LAN Applications. - Toshiyuki Ogawa; Takefumi Hiraguri; Kentaro Nishimori; Hideaki Yoshino; Kenya Jin'no (IEICE Trans. Commun., 2014)

Channel Estimation Method Using Arbitrary Amplitude and Phase Modulation Schemes for MIMO Sensor. - Tsubasa Tashiro; Kentaro Nishimori; Tsutomu Mitsui; Nobuyasu Takemura (IEICE Trans. Commun., 2014)

Survey of Transmission Methods and Efficiency Using MIMO Technologies for Wireless LAN Systems. - Takefumi Hiraguri; Kentaro Nishimori (IEICE Trans. Commun., 2015)

Interference Suppression Method between Primary Broadcasting and Secondary Systems Using Load Modulation. - Takuma Ito; Naoki Honma; Keisuke Terasaki; Kentaro Nishimori; Yoshitaka Tsunekawa (IEICE Trans. Commun., 2015)

Interference Reduction Characteristics by Circular Array Based Massive MIMO in a Real Microcell Environment. - Ryochi Kataoka; Kentaro Nishimori; Ngochao Tran; Tetsuro Imai; Hideo Makino (IEICE Trans. Commun., 2015)

Estimating Living-Body Location Using Bistatic MIMO Radar in Multi-Path Environment. - Keita Konno; Naoki Honma; Dai Sasakawa; Kentaro Nishimori; Nobuyasu Takemura; Tsutomu Mitsui; Yoshitaka Tsunekawa (IEICE Trans. Commun., 2015)

Evaluation of fast human localization and tracking using MIMO radar in multi-path environment. - Dai Sasakawa; Naoki Honma; Kentaro Nishimori; Takeshi Nakayama; Shoichi Iizuka (PIMRC, 2016)

FFT-Based Block Diagonalization at User Terminal for Implicit Beamforming in Multiuser MIMO System. - Hayate Kimoto; Kentaro Nishimori; Takefumi Hiraguri; Hideo Makino (IEICE Trans. Commun., 2016)

A Novel Collision Avoidance Scheme Using Optimized Contention Window in Dense Wireless LAN Environments. - Yoshiaki Morino; Takefumi Hiraguri; Hideaki Yoshino; Kentaro Nishimori; Takahiro Matsuda 001 (IEICE Trans. Commun., 2016)

Four-Stream Parallel Transmission for Short-Range MIMO Using Only Passive Analog Components. - Kentaro Murata; Naoki Honma; Kentaro Nishimori; David M. Klymyshyn; Hisashi Morishita (IEICE Trans. Commun., 2016)

Simultaneous Decoupling and Matching Technique for Short-Range MIMO. - Kentaro Murata; Naoki Honma; Kentaro Nishimori; Naobumi Michishita; Hisashi Morishita (IEICE Trans. Commun., 2016)

Analog Eigenmode Transmission for Short-Range MIMO. - Kentaro Murata; Naoki Honma; Kentaro Nishimori; Hisashi Morishita (IEEE Trans. Veh. Technol., 2016)

Proposal of overhead-less access control scheme for multi-beam massive MIMO transmission in WLAN systems. - Yoshiaki Morino; Takefumi Hiraguri; Hideaki Yoshino; Kentaro Nishimori (Med-Hoc-Net, 2017)

Precise Indoor Localization Method Using Dual-Facing Cameras on a Smart Device via Visible Light Communication. - Yohei Nakazawa; Hideo Makino; Kentaro Nishimori; Daisuke Wakatsuki; Makoto Kobayashi; Hideki Komagata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

Multi-Beam Massive MIMO Using Constant Modulus Algorithm for QAM Signals Employing Amplitude and Phase Offset Compensation. - Ryotaro Taniguchi; Kentaro Nishimori; Hideo Makino (IEICE Trans. Commun., 2017)

Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems. - Rafail Ismayilov; Megumi Kaneko; Takefumi Hiraguri; Kentaro Nishimori (VTC Spring, 2018)

Novel Access Control Scheme with Collision Detection Utilizing MIMO Transmission Procedure in WLAN Systems. - Takefumi Hiraguri; Kentaro Nishimori; Yoshiaki Morino; Mamoru Ugajin; Hideaki Yoshino (IEICE Trans. Commun., 2018)

Inter-Terminal Interference Evaluation of Full Duplex MIMO Using Measured Channel. - Yuta Kashino; Masakuni Tsunezawa; Naoki Honma; Kentaro Nishimori (IEICE Trans. Commun., 2018)

Effect of User Antenna Selection on Block Beamforming Algorithms for Suppressing Inter-User Interference in Multiuser MIMO System. - Nobuyoshi Kikuma; Kentaro Nishimori; Takefumi Hiraguri (IEICE Trans. Commun., 2018)

CSI Feedback Reduction Method for Downlink Multiuser MIMO Transmission Using Dense Distributed Antenna Selection. - Tomoki Murakami; Koichi Ishihara; Yasushi Takatori; Masato Mizoguchi; Kentaro Nishimori (IEICE Trans. Commun., 2018)

Multi-Beam Massive MIMO with Beam-Selection Using Only Amplitude Information in Uplink Channel. - Fumiya Muramatsu; Kentaro Nishimori; Ryotaro Taniguchi; Takefumi Hiraguri (IEICE Trans. Commun., 2018)

Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System. - Sho Yoshida; Kentaro Nishimori; Soichi Ito; Tomoki Murakami; Koichi Ishihara; Yasushi Takatori (IEICE Trans. Commun., 2018)

Blind Adaptive Array by Constant Modulus with Variable Step Size for Multi-beam Massive MIMO. - Kentaro Nishimori; Kazuki Maruta; Takefumi Hiraguri (WSA, 2019)

A 20-GHz-Band 64 × 64 Hollow Waveguide Two-Dimensional Butler Matrix. - Takashi Tomura; Dong-Hun Kim; Masahiro Wakasa; Yuki Sunaguchi; Jiro Hirokawa; Kentaro Nishimori (IEEE Access, 2019)

Adaptive Direction Control for UAV Full-Duplex Relay Networks Using Multiple Directional Antennas. - Takahiro Matsuda 001; Megumi Kaneko; Takefumi Hiraguri; Kentaro Nishimori; Tomotaka Kimura; Akihiro Nakao (IEEE Access, 2020)

Novel Unmanned Aerial Vehicle-Based Line-of-Sight MIMO Configuration Independent of Transmitted Distance Using Millimeter Wave. - Naoki Matsumura; Kentaro Nishimori; Ryotaro Taniguchi; Takefumi Hiraguri; Takashi Tomura; Jiro Hirokawa (IEEE Access, 2020)

A Cooperative Transmission Scheme in Drone-Based Networks. - Takefumi Hiraguri; Kentaro Nishimori; Isamu Shitara; Tsutomu Mitsui; Takuya Shindo; Tomotaka Kimura; Takahiro Matsuda 001; Hideaki Yoshino (IEEE Trans. Veh. Technol., 2020)

Interference Gaussianization: Time-Domain Inter-Symbol Spreading for Blind Adaptive Array Signal Source Identification. - Kazuki Maruta; Katsuya Senoo; Daisuke Hisano; Yu Nakayama; Kentaro Nishimori (IEEE Access, 2021)

Multibeam Patterns Suitable for Massive MIMO Configurations. - Kentaro Nishimori; Jiro Hirokawa (IEICE Trans. Commun., 2022)

Fast-Converging Constant Modulus Algorithm with Variable Step Size for Multibeam Massive MIMO. - Kentaro Nishimori; Kazuki Maruta; Takefumi Hiraguri; Hidehisa Shiomi (IEICE Trans. Commun., 2022)