Novel multiple access protocol for voice over IP in wireless LAN. - Takefumi Hiraguri; Takeo Ichikawa; Masataka Iizuka; Masahiro Morikura (ISCC, 2002)

Development of traffic control mechanisms for IEEE 802.11 wireless LANs without QoS support functionality. - Takefumi Hiraguri; Yasuhiko Inoue; Shuji Kubota (ISWCS, 2004)

Proposal of Wireless Traffic Control Schemes for Wireless LANs. - Takefumi Hiraguri; Takeo Ichikawa; Masataka Iizuka; Shuji Kubota (IEICE Trans. Commun., 2008)

A novel interference avoidance technique on MAC protocol for Wireless LAN-WIMAX relay. - Akira Kishida; Takefumi Hiraguri; Masakatsu Ogawa (PIMRC, 2009)

Study of power saving scheme suitable for wireless LAN in multimedia communication. - Takefumi Hiraguri; Masakatsu Ogawa; Makoto Umeuchi; Tetsu Sakata (WCNC, 2009)

Novel frame structures to improve system capacity and latency performance of a time-division duplex multihop relay wireless access system. - Youhei Ohno; Tatsuya Shimizu; Takefumi Hiraguri; Masashi Nakatsugawa (WCNC, 2009)

Power Saving Scheme Suitable for Wireless LAN in Multimedia Communications. - Takefumi Hiraguri; Masakatsu Ogawa; Makoto Umeuchi; Tetsu Sakata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Power Saving Control for Battery-Powered Portable WLAN APs. - Masakatsu Ogawa; Takefumi Hiraguri (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 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)

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)

Frame Resource Allocation Schemes that Improve System Capacity and Latency Performance of Time-Division Duplex Multihop Relay Systems. - Youhei Ohno; Tatsuya Shimizu; Takefumi Hiraguri; Masashi Nakatsugawa (IEICE Trans. Commun., 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)

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

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)

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)

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)

Virtualization-capable multichannel WiFi system with a coordinated downlink transmission technique. - Yozo Shoji; Takefumi Hiraguri (CSNDSP, 2014)

Canonical deterministic particle swarm optimization to sustain global search. - Kenya Jin'no; Takuya Shindo; Takuya Kurihara; Takefumi Hiraguri; Hideaki Yoshino (SMC, 2014)

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

Effective Method for Wind and Solar Power Grid Systems Based on Recurrent Neural Networks. - Keisuke Kimura; Takayuki Kimura; Takefumi Hiraguri; Kenya Jin'no (J. Adv. Comput. Intell. Intell. Informatics, 2014)

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

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)

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)

An (N+N2)-Mixer Architecture for a High-Image-Rejection Wireless Receiver with an N-Phase Active Complex Filter. - Mamoru Ugajin; Takuya Shindo; Tsuneo Tsukahara; Takefumi Hiraguri (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

Adaptive Control of Statistical Data Aggregation to Minimize Latency in IoT Gateway. - Hideaki Yoshino; Kenko Ota; Takefumi Hiraguri (GIIS, 2018)

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)

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)

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)

Queueing Delay Analysis and Optimization of Statistical Data Aggregation and Transmission Systems. - Hideaki Yoshino; Kenko Ota; Takefumi Hiraguri (IEICE Trans. Commun., 2018)

Optimal Parameters of Nonstatistical Sensor Data Aggregation Minimizing Latency in IoT Gateway. - Hideaki Yoshino; Kenko Ota; Takefumi Hiraguri (GLOBECOM, 2019)

Adaptive Control of Nonstatistical Sensor Data Aggregation to Minimize Latency in IoT Gateways. - Hideaki Yoshino; Kenko Ota; Takefumi Hiraguri (ITNAC, 2019)

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

A Study on Quality of Experience with Scalable Video Coding Transmission Rate Control in Wireless LAN Multicast Environments with Background Traffic. - H. Iida; Isamu Shitara; Hideaki Yoshino; Takahiro Matsuda 001; Takefumi Hiraguri (ICCE-TW, 2020)

Improving QoE Fairness Using the IEEE 802.11e Priority Control Mechanism. - Kosuke Shikama; Takahiro Matsuda 001; Takefumi Hiraguri; Takanori Hayashi; Ryo Yamamoto (ICCE-TW, 2020)

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)

Study of flower image classification using deep learning to support agricultural pollination. - Eisuke Fukuyama; Tomotaka Kimura; Nobuhiko Itoh; Takefumi Hiraguri (ICCE-TW, 2021)

Traffic Reduction Technologies and Data Aggregation Control to Minimize Latency in IoT Systems. - Hideaki Yoshino; Kenko Ota; Takefumi Hiraguri (IEICE Trans. Commun., 2021)

Semantic Segmentation Based Field Detection Using Drones. - Keita Endo; Tomotaka Kimura; Nobuhiko Itoh; Takefumi Hiraguri (ICCE-TW, 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)

TDM Scheduling Based on Receiver Grouping for Indoor Wireless Power Transfer. - Yuna Sawada; Shino Shiraki; Takahiro Matsuda 001; Takefumi Hiraguri; Kazuki Maruta; Tomotaka Kimura (APCC, 2023)

Directional beam antenna control in response to drone tilts. - Chikayo Hata; Takefumi Hiraguri; Takahiro Matsuda 001; Tetsuro Imai; Jiro Hirokawa (ICCE-Taiwan, 2023)

Agricultural Field Monitoring System Using DTN-based Drone Networks. - Kota Hatajiri; Tomotaka Kimura; Takefumi Hiraguri; Jun Cheng 001 (ICCE-Taiwan, 2023)

Performance Improvement of Maximum Likelihood Wave Source Localization with LOS/NLOS Identification. - Takayuki Mori; Shinichi Murata; Takahiro Matsuda 001; Takefumi Hiraguri (ICCE-Taiwan, 2023)

Adaptive Antenna Selection for Two-Hop Full-Duplex UAV Relay Networks. - Takumu Uda; Takahiro Matsuda 001; Takefumi Hiraguri (ICCE-Taiwan, 2023)

Drone Flight Experiment using RTK Positioning for Pear Pollination. - Naoki Yamada; Takefumi Hiraguri; Hiroyuki Shimizu; Tomotaka Kimura; Tomohito Shimada; Akane Shibasaki; Yoshihiro Takemura (ICCE-Taiwan, 2023)

Autonomous Drone-Based Pollination System Using AI Classifier to Replace Bees for Greenhouse Tomato Cultivation. - Takefumi Hiraguri; Hiroyuki Shimizu; Tomotaka Kimura; Takahiro Matsuda 001; Kazuki Maruta; Yoshihiro Takemura; Takeshi Ohya; Takuma Takanashi (IEEE Access, 2023)

Evaluation of handover schemes and switching between different communication systems by drone radio stations. - Koyo Aoyama; Takefumi Hiraguri; Kakeru Hirata; Takahiro Matsuda 001; Tomotaka Kimura (ICCE-Taiwan, 2024)

AI camera development sutitable for tomato harvest timing estimation. - Yasuhiro Okabe; Takefumi Hiraguri; Keita Endo; Hiroyuki Shimizu; Tomotaka Kimura; Naoki Yamada (ICCE-Taiwan, 2024)

Time Division Wireless Power Transfer Using Receiver Grouping. - Yuna Sawada; Shino Shiraki; Takahiro Matsuda 001; Takefumi Hiraguri; Kazuki Maruta; Tomotaka Kimura (IEEE Access, 2024)