Akihiro Okazaki

Publication Activity (10 Years)

Years Active: 1993-2024
Publications (10 Years): 18

Top Topics

Communication Systems

High Speed Train

Spectral Features

Top Venues

IEICE Trans. Commun.

IEEE Wirel. Commun. Lett.

Publications

Shusaku Umeda, Kazuaki Ishioka, Kota Nakamura, Michiya Hayama, Akinori Taira, Akihiro Okazaki
Heartbeat Interval Estimation Method Using Sub-Terahertz Sensing. CCNC (2024)
Manabu Sakai, Kazuma Obigane, Hiroshi Nishimoto, Akihiro Okazaki, Masaki Noda
Experimental Trials on Sidelink Multi-hop Communications. VTC2023-Spring (2023)
Manabu Sakai, Kenichiro Kamohara, Hiroki Iura, Hiroshi Nishimoto, Kazuaki Ishioka, Yoshitaka Murata, Masayuki Yamamoto, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura
Experimental Field Trials on MU-MIMO Transmissions for High SHF Wide-Band Massive MIMO in 5G. IEEE Trans. Wirel. Commun. 19 (4) (2020)
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Hiroyasu Sano, Shusaku Umeda, Kaoru Tsukamoto, Atsushi Okamura
An Equalization of PN-DSTBC for Concatenating with Spectral Precoding. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (3) (2019)
Yukihiko Okumura, Satoshi Suyama, Naoto Ishii, Yasushi Maruta, Akihiro Okazaki, Atsushi Okamura, Jun Terada, Takeshi Onizawa
5G R&D Achievements for High-Data-Rate and Low-Power-Consumption Radio Access Technologies with Higher-Frequency-Band and Wider-Bandwidth Massive MIMO. VTC Spring (2019)
Fumihiro Hasegawa, Hiroshi Nishimoto, Nuan Song, Mihail Enescu, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Non-Linear Precoding for 5G NR. CSCN (2018)
Fumihiro Hasegawa, Akinori Taira, Gosan Noh, Bing Hui, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Junhwan Lee, Ilgyu Kim
High-Speed Train Communications Standardization in 3GPP 5G NR. IEEE Commun. Stand. Mag. 2 (1) (2018)
Manabu Sakai, Kenji Nakagawa, Hiroki Iura, Naofumi Iwayama, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura
Indoor Experimental Trial on Hybrid 16-Beam Spatial-Multiplexing for High SHF Wide-Band Massive MIMO in 5G. VTC Fall (2018)
Hideyuki Nakamizo, Shintaro Shinjo, Koji Tsutsumi, Satoshi Yamaguchi, Hideharu Yoshioka, Akihiro Okazaki, Akinori Taira, Kenichi Tajima
A Compact RF Frontend Module of Active Phased Array Antenna for High SHF Wideband Massive MIMO in 5G. IEICE Trans. Electron. (10) (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
Performance Evaluation of NL-BMD Precoding over Analog-Digital Hybrid Beamforming for High SHF Wide-Band Massive MIMO in 5G. Int. J. Wirel. Inf. Networks 24 (3) (2017)
Fumihiro Hasegawa, Akinori Taira, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Gosan Noh, Bing Hui, Junhwan Lee, Ilgyu Kim
3GPP standardization activities in relay based 5G high speed train scenarios for the SHF band. CSCN (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G. IEICE Trans. Commun. (8) (2017)
Fumihiro Hasegawa, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura
Static sequence wrapped DFT-s-OFDM for high-speed train scenarios in high-SHF bands. EuCNC (2017)
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
Nonlinear block multi-diagonalization precoding for high SHF wide-band massive MIMO in 5G. PIMRC (2016)
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Block lower multi-diagonalization for multiuser MIMO downlink. WCNC Workshops (2016)
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Shusaku Umeda, Kaoru Tsukamoto, Hiroyasu Sano, Atsushi Okamura
Two-dimensional diversity with serial concatenation of spectral precoding and DSTBC. ISITA (2016)
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
Block lower multi-diagonalization for multiuser MIMO downlink. WCNC (2016)
Hidekazu Murata, Eiji Okamoto, Manabu Mikami, Akihiro Okazaki, Satoshi Suyama, Takamichi Inoue, Jun Mashino, Tetsuya Yamamoto, Makoto Taromaru
Radio Access Technologies for Fifth Generation Mobile Communications System: Review of Recent Research and Developments in Japan. IEICE Trans. Commun. (8) (2016)
Fumihiro Hasegawa, Shintaro Shinjo, Akihiro Okazaki, Atsushi Okamura, Loïc Brunel, David Mottier
Static sequence assisted out-of-band power suppression for DFT-s-OFDM. PIMRC (2015)
Shusaku Umeda, Akihiro Okazaki, Hiroshi Nishimoto, Kaoru Tsukamoto, Kanako Yamaguchi, Atsushi Okamura
Cell Structure for High-Speed Land-Mobile Communications. VTC Fall (2015)
Akinori Taira, Hiroki Iura, Kenji Nakagawa, Shigeru Uchida, Kazuaki Ishioka, Akihiro Okazaki, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura, Atsushi Okamura
Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement. GLOBECOM Workshops (2015)
Hidekazu Murata, Eiji Okamoto, Manabu Mikami, Akihiro Okazaki, Satoshi Suyama, Takamichi Inoue, Jun Mashino, Tetsuya Yamamoto, Makoto Taromaru
R&D activities for 5G in IEICE technical committee on radio communication systems. APCC (2015)
Fumihiro Hasegawa, Akihiro Okazaki, Atsushi Okamura, Damien Castelain, Cristina Ciochina-Duchesne, Loïc Brunel, David Mottier
Novel Dynamic and Static Methods for Out-of-Band Power Suppression in SC-OFDM. IEEE Wirel. Commun. Lett. 4 (3) (2015)
Fumihiro Hasegawa, Masatsugu Higashinaka, Akihiro Okazaki, Fumio Ishizu, Damien Castelain, Loïc Brunel, David Mottier
Phase-Anchored SC-OFDM. IEEE Wirel. Commun. Lett. 3 (1) (2014)
Hiroshi Kubo, Masatsugu Higashinaka, Akihiro Okazaki
Non-coherent MIMO Communication Systems Employing per Transmit Antenna Differential Mapping (PADM). IEICE Trans. Commun. (10) (2012)
Keisuke Ozaki, Koji Tomitsuka, Akihiro Okazaki, Hiroyasu Sano, Hiroshi Kubo
Channel estimation technique for OFDM systems spread by chirp sequences. PIMRC (2012)
Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo, Damien Castelain, David Mottier
A Novel PAPR Reduction Scheme for SC-OFDM with Frequency Domain Multiplexed Pilots. IEEE Commun. Lett. 16 (9) (2012)
Man-On Pun, Andreas F. Molisch, Philip V. Orlik, Akihiro Okazaki
Super-Resolution Blind Channel Modeling. ICC (2011)
Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo
Peak power reduction techniques for multi-channel SC-OFDM. PIMRC (2011)
Akinori Nakajima, Kenichiro Tanaka, Akinori Ohashi, Hiroshi Hattori, Akihiro Okazaki, Hiroshi Kubo
Transmission Performance of Space Time Block Coding with Grouped Phase Rotation for Asymmetric MIMO-OFDM System. IEICE Trans. Commun. (12) (2011)
Fumihiro Hasegawa, Hiroyasu Sano, Akihiro Okazaki, Hiroshi Kubo
Low complexity frame synchronization methods for fading channels. PIMRC (2010)
Masatsugu Higashinaka, Hiroshi Kubo, Akihiro Okazaki
Channel estimation with interference cancellation for a MIMO receiver using iterative equalization and decoding. PIMRC (2008)
Masatsugu Higashinaka, Hiroshi Kubo, Akihiro Okazaki, Yasutaka Ogawa, Takeo Ohgane, Toshihiko Nishimura
Soft Decision Directed Channel Estimation with Interference Cancellation for a MIMO System Using Iterative Equalization and Decoding. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2008)
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Akihiro Okazaki, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO Spatial-Multiplexing System. IEICE Trans. Commun. (3) (2008)
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya, Akihiro Okazaki
Capacity Evaluation of MIMO-OFDM Systems using Reduced-Complexity ML Detectors in a Spatially Correlated Channel. PIMRC (2007)
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya, Akihiro Okazaki
Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO System. VTC Spring (2007)
Abdel-Majid Mourad, Loïc Brunel, Akihiro Okazaki, Umer Salim
Channel Quality Indicator Estimation for OFDMA Systems in the Downlink. VTC Spring (2007)
Akihiro Okazaki, Katsuyuki Motoyoshi, Masatsugu Higashinaka, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2006)
Masatsugu Higashinaka, Akihiro Okazaki, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
A Co-channel Interference Cancellation Method Using Low Dimensional Sphere Decoding for MIMO Communication Systems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2006)
Akihiro Okazaki, Katsuyuki Motoyoshi, Masatsugu Higashinaka, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems. PIMRC (2006)
Hiroshi Kubo, Masatsugu Higashinaka, Akihiro Okazaki, Keishi Murakami
Performance Improvement for MIMO Communication Systems Employing Per Transmit Antenna Differential Encoding (PADE). PIMRC (2005)
Hiroshi Kubo, Akihiro Okazaki, Kazuo Tanada, Bertrand Penther, Keishi Murakami
A Multiple-Symbol Differential Detection Based on Channel Prediction for Fast Time-Varying Fading. IEICE Trans. Commun. (8) (2005)
Hiroshi Kubo, Akihiro Okazaki, Kazuo Tanada, Bertrand Penther, Makoto Miyake
A parallel blind demodulator in the presence of intersymbol interference. ICC (2001)
Kazuo Tanada, Hiroshi Kubo, Akihiro Okazaki, Takeshi Uraguchi, Shuichi Hayashi, Hisashi Ishikawa, Atsushi Iwase, Jun Taniguchi
Experimental evaluation of a parallel blind demodulator combined with a Reed-Solomon decoder in the presence of intersymbol interference. VTC Fall (2001)
Masayuki Orimo, Sigeki Hirasawa, Akihiro Okazaki, Hirosi Fujise, Masuyuki Takeuchi, Kinji Mori
Distributed file management techniques based on an autonomous decentralized system concept. Comput. Commun. 16 (5) (1993)