A maximal ratio combining frequency diversity ARQ scheme for OFDM signals. - Tomoaki Kumagai; Masato Mizoguchi; Takeshi Onizawa; Hitoshi Takanashi; Masahiro Morikura (PIMRC, 1998)

A new simple adaptive phase tracking scheme employing phase noise estimation for OFDM signals. - Takeshi Onizawa; Masato Mizoguchi; Tetsu Sakata; Masahiro Morikura (VTC Spring, 2002)

A new signal detection scheme combining ZF and K-best algorithms for OFDM/SDM. - Tukafunzi Fujita; Takeshi Onizawa; Wenjie Jiang 002; Daisei Uchida; Takatoshi Sugiyama; Atsushi Ohta (PIMRC, 2004)

A Reduced-Complexity Signal Detection Scheme Employing ZF and K-Best Algorithms for OFDM/SDM. - Takafumi Fujita; Atsushi Ohta; Takeshi Onizawa; Takatoshi Sugiyama (IEICE Trans. Commun., 2005)

A Simplified Maximum Likelihood Detector for OFDM-SDM Systems in Wireless LAN. - Wenjie Jiang 002; Takeshi Onizawa; Atsushi Ohta; Satoru Aikawa (IEICE Trans. Commun., 2005)

Efficient Detection Algorithms for Spatial Multiplexing Systems. - Wenjie Jiang 002; Yusuke Asai; Takeshi Onizawa; Satoru Aikawa (PIMRC, 2006)

Experimental Evaluation of Transmit Antenna Selection Implemented in FPGA for Eigenbeam MIMO-OFDM. - Takeshi Onizawa; Atsushi Ohta; Yusuke Asai; Satoru Aikawa (PIMRC, 2006)

A Simplified Decision-Feedback Channel Tracking Scheme for MIMO-OFDM Systems. - Yusuke Asai; Wenjie Jiang 002; Takeshi Onizawa; Satoru Aikawa; Daisei Uchida; Atsushi Ohta (VTC Fall, 2006)

MMSE Criterion Fast Decision Feedback Equalization Algorithm for Spatial Multiplexing Systems. - Wenjie Jiang 002; Yusuke Asai; Takeshi Onizawa; Satoru Aikawa (VTC Fall, 2006)

Fast Algorithm for Decision Feedback Equalization in Multiple Input Multiple Output Channel. - Wenjie Jiang 002; Yusuke Asai; Takeshi Onizawa; Satoru Aikawa (VTC Spring, 2006)

Experimental Evaluation of Transmit Antenna Selection Implemented in FPGA for MIMO-OFDM. - Takeshi Onizawa; Atsushi Ohta; Satoru Aikawa (VTC Fall, 2006)

Experimental Evaluation of Eigenbeam MIMO-OFDM Implemented in FPGA for Wireless LAN. - Takeshi Onizawa; Atsushi Ohta; Yusuke Asai; Satoru Aikawa (VTC Spring, 2006)

FPGA Implementation of Eigenbeam MIMO-OFDM for Wireless LAN and Its Experimental Performance. - Takeshi Onizawa; Atsushi Ohta; Yusuke Asai; Satoru Aikawa (IEICE Trans. Commun., 2006)

Packet-Combining Demodulation Scheme for Cooperative MIMO-OFDM Transmission. - Takeshi Onizawa; Yusuke Asai; Takeo Ichikawa; Hiroshi Kazama (VTC Fall, 2007)

Experimental Studies on a Decision-Feedback Channel Tracking Scheme Implemented in FPGA for MIMO-OFDM Systems. - Yusuke Asai; Wenjie Jiang 002; Takeshi Onizawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

A Simple and Feasible Decision-Feedback Channel Tracking Scheme for MIMO-OFDM Systems. - Yusuke Asai; Wenjie Jiang 002; Takeshi Onizawa; Atsushi Ohta; Satoru Aikawa (IEICE Trans. Commun., 2007)

A New Ordered Decision Feedback Equalization Algorithm for Spatial Multiplexing Systems in MIMO Channel. - Wenjie Jiang 002; Yusuke Asai; Takeshi Onizawa; Satoru Aikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

A Synchronization Scheme for Packet Mode MIMO-OFDM Signals in Wireless LAN. - Takeshi Onizawa; Takafumi Fujita; Yusuke Asai; Daisei Uchida; Atsushi Ohta; Satoru Aikawa (IEICE Trans. Commun., 2007)

Experiments on FPGA-Implemented Eigenbeam MIMO-OFDM With Transmit Antenna Selection. - Takeshi Onizawa; Atsushi Ohta; Yusuke Asai (IEEE Trans. Veh. Technol., 2009)

Frame Collision Reduction Method Employing Adaptive Transmission Control for IEEE802.11 Wireless LAN System. - Akira Kishida; Masashi Iwabuchi; Toshiyuki Shintaku; Takeshi Onizawa; Tetsu Sakata (IEICE Trans. Commun., 2014)

A New Simple Packet Combining Scheme Employing Maximum Likelihood Detection for MIMO-OFDM Transmission in Relay Channels. - Takeshi Onizawa; Hiroki Shibayama; Masashi Iwabuchi; Akira Kishida; Makoto Umeuchi; Tetsu Sakata (IEICE Trans. Commun., 2014)

Path Loss Model for Outdoor-to-Indoor Corridor Up to 40GHz Band in Microcell Environments. - Minoru Inomata; Motoharu Sasaki; Wataru Yamada; Takeshi Onizawa; Masashi Nakatsugawa; Nobutaka Omaki; Koshiro Kitao; Tetsuro Imai; Yukihiko Okumura (IEICE Trans. Commun., 2017)

Frequency Dependency of Path Loss Between Different Floors in An Indoor Office Environment at UHF and SHF Bands. - Motoharu Sasaki; Minoru Inomata; Wataru Yamada; Naoki Kita; Takeshi Onizawa; Masashi Nakatsugawa; Koshiro Kitao; Tetsuro Imai (IEICE Trans. Commun., 2018)

Path Loss Model Considering Blockage Effects of Traffic Signs Up to 40GHz in Urban Microcell Environments. - Motoharu Sasaki; Minoru Inomata; Wataru Yamada; Naoki Kita; Takeshi Onizawa; Masashi Nakatsugawa; Koshiro Kitao; Tetsuro Imai (IEICE Trans. Commun., 2018)

5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO. - Yukihiko Okumura; Satoshi Suyama; Naoto Ishii; Yasushi Maruta; Akihiro Okazaki; Atsushi Okamura; Jun Terada; Takeshi Onizawa (VTC Spring, 2019)

Path Loss Model in Crowded Outdoor Environments Considering Multiple Human Body Shadowing of Multipath at 4.7GHz and 26.4GHz. - Mitsuki Nakamura; Motoharu Sasaki; Wataru Yamada; Naoki Kita; Takeshi Onizawa; Yasushi Takatori; Masashi Nakatsugawa; Minoru Inomata; Koshiro Kitao; Tetsuro Imai (IEICE Trans. Commun., 2019)

Experimental Verification of 1-Tap Time Domain Beamforming for P-MP Relay System via 75 GHz Band Measured CSI. - Mizuki Suga; Atsushi Ohta; Kazuto Goto; Takahiro Tsuchiya; Nobuaki Otsuki; Yushi Shirato; Naoki Kita; Takeshi Onizawa (IEICE Trans. Commun., 2019)

Experimental Evaluation of Remote Beamforming Scheme with Fixed Wavelength Allocation for Radio-over-Fiber Systems. - Kota Ito; Mizuki Suga; Yushi Shirato; Naoki Kita; Takeshi Onizawa (ECOC, 2020)

Comprehensive Feasibility Study on Direct Spectrum Division Transmission over Multiple Satellite Transponders. - Fumihiro Yamashita; Daisuke Goto; Yasuyoshi Kojima; Jun-ichi Abe; Takeshi Onizawa (IEICE Trans. Commun., 2021)

Extension of ITU-R Site-General Path Loss Model in Urban Areas Based on Measurements from 2 to 66GHz Bands. - Motoharu Sasaki; Mitsuki Nakamura; Nobuaki Kuno; Wataru Yamada; Naoki Kita; Takeshi Onizawa; Yasushi Takatori; Hiroyuki Nakamura; Minoru Inomata; Koshiro Kitao; Tetsuro Imai (IEICE Trans. Commun., 2021)

Simple Weight Calculation Methods for Millimeter Wave Band Massive Antenna Array in Direct Wave Dominant Environment. - Mizuki Suga; Yushi Shirato; Naoki Kita; Takeshi Onizawa (IEICE Trans. Commun., 2021)

Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels. - Hao-Tse Chiu; Shuhei Saito; Hirofumi Suganuma; Keita Kuriyama; Kentaro Tanaka; Hitoshi Hasegawa; Toshifumi Miyagi; Takeshi Onizawa; Fumiaki Maehara (IEEE Access, 2023)

Analog-Circuit Domain Cancellation with Optimal Feedback Path Selection on Full-Duplex Relay Systems. - Hayato Fukuzono; Keita Kuriyama; Masafumi Yoshioka; Toshifumi Miyagi; Takeshi Onizawa (IEICE Trans. Commun., 2023)

Performance Evaluation of MIMO-FTN Signaling under Multipath Fading Channels with PA Non-Linearity. - Hao-Tse Chiu; Shuhei Saito; Keita Kuriyama; Kentaro Tanaka; Hitoshi Hasegawa; Toshifumi Miyagi; Takeshi Onizawa; Fumiaki Maehara (ICNC, 2024)

2D Pre-Beamforming Control Method via Analog Radio Over Fiber for Wireless Communication Systems With Massive Planar Array Antenna. - Mizuki Suga; Yuta Takahashi; Yasuyoshi Yamamoto; Hideki Toshinaga; Naoki Kita; Takeshi Onizawa (IEEE Access, 2025)