Akihiro Okazaki

46 papers B 10C 2Journal 18Unranked 15
YearRankTypeTitle / Venue / Authors
2024 — conf
Heartbeat Interval Estimation Method Using Sub-Terahertz Sensing.
CCNC
Shusaku Umeda, Kazuaki Ishioka, Kota Nakamura, Michiya Hayama, Akinori Taira, Akihiro Okazaki
2023 — conf
Experimental Trials on Sidelink Multi-hop Communications.
VTC2023-Spring
Manabu Sakai, Kazuma Obigane, Hiroshi Nishimoto, Akihiro Okazaki, Masaki Noda
2020 J jnl
Experimental Field Trials on MU-MIMO Transmissions for High SHF Wide-Band Massive MIMO in 5G.
IEEE Trans. Wirel. Commun.
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
2019 — conf
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
Yukihiko Okumura, Satoshi Suyama, Naoto Ishii, Yasushi Maruta, Akihiro Okazaki, Atsushi Okamura, Jun Terada, Takeshi Onizawa
2019 J jnl
An Equalization of PN-DSTBC for Concatenating with Spectral Precoding.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Hiroyasu Sano, Shusaku Umeda, Kaoru Tsukamoto, Atsushi Okamura
2018 J jnl
High-Speed Train Communications Standardization in 3GPP 5G NR.
IEEE Commun. Stand. Mag.
Fumihiro Hasegawa, Akinori Taira, Gosan Noh, Bing Hui, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Junhwan Lee, Ilgyu Kim
2018 — conf
Indoor Experimental Trial on Hybrid 16-Beam Spatial-Multiplexing for High SHF Wide-Band Massive MIMO in 5G.
VTC Fall
Manabu Sakai, Kenji Nakagawa, Hiroki Iura, Naofumi Iwayama, Akihiro Okazaki, Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Atsushi Okamura, Yukihiko Okumura
2018 — conf
Non-Linear Precoding for 5G NR.
CSCN
Fumihiro Hasegawa, Hiroshi Nishimoto, Nuan Song, Mihail Enescu, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
2017 — conf
3GPP standardization activities in relay based 5G high speed train scenarios for the SHF band.
CSCN
Fumihiro Hasegawa, Akinori Taira, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura, Gosan Noh, Bing Hui, Junhwan Lee, Ilgyu Kim
2017 J jnl
A Compact RF Frontend Module of Active Phased Array Antenna for High SHF Wideband Massive MIMO in 5G.
IEICE Trans. Electron.
Hideyuki Nakamizo, Shintaro Shinjo, Koji Tsutsumi, Satoshi Yamaguchi, Hideharu Yoshioka, Akihiro Okazaki, Akinori Taira, Kenichi Tajima
2017 J jnl
NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G.
IEICE Trans. Commun.
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
2017 J jnl
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
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
2017 — conf
Static sequence wrapped DFT-s-OFDM for high-speed train scenarios in high-SHF bands.
EuCNC
Fumihiro Hasegawa, Hiroshi Nishimoto, Akihiro Okazaki, Atsushi Okamura
2016 — conf
Block lower multi-diagonalization for multiuser MIMO downlink.
WCNC Workshops
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
2016 B conf
Block lower multi-diagonalization for multiuser MIMO downlink.
WCNC
Hiroshi Nishimoto, Hiroki Iura, Akinori Taira, Akihiro Okazaki, Atsushi Okamura
2016 B conf
Nonlinear block multi-diagonalization precoding for high SHF wide-band massive MIMO in 5G.
PIMRC
Hiroshi Nishimoto, Akinori Taira, Hiroki Iura, Shigeru Uchida, Akihiro Okazaki, Atsushi Okamura
2016 J jnl
Radio Access Technologies for Fifth Generation Mobile Communications System: Review of Recent Research and Developments in Japan.
IEICE Trans. Commun.
Hidekazu Murata, Eiji Okamoto, Manabu Mikami, Akihiro Okazaki, Satoshi Suyama, Takamichi Inoue, Jun Mashino, Tetsuya Yamamoto, Makoto Taromaru
2016 C conf
Two-dimensional diversity with serial concatenation of spectral precoding and DSTBC.
ISITA
Kanako Yamaguchi, Nicolas Gresset, Hiroshi Nishimoto, Akihiro Okazaki, Shusaku Umeda, Kaoru Tsukamoto, Hiroyasu Sano, Atsushi Okamura
2015 — conf
Cell Structure for High-Speed Land-Mobile Communications.
VTC Fall
Shusaku Umeda, Akihiro Okazaki, Hiroshi Nishimoto, Kaoru Tsukamoto, Kanako Yamaguchi, Atsushi Okamura
2015 J jnl
Novel Dynamic and Static Methods for Out-of-Band Power Suppression in SC-OFDM.
IEEE Wirel. Commun. Lett.
Fumihiro Hasegawa, Akihiro Okazaki, Atsushi Okamura, Damien Castelain, Cristina Ciochina-Duchesne, Loïc Brunel, David Mottier
2015 — conf
Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement.
GLOBECOM Workshops
Akinori Taira, Hiroki Iura, Kenji Nakagawa, Shigeru Uchida, Kazuaki Ishioka, Akihiro Okazaki, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura, Atsushi Okamura
2015 C conf
R&D activities for 5G in IEICE technical committee on radio communication systems.
APCC
Hidekazu Murata, Eiji Okamoto, Manabu Mikami, Akihiro Okazaki, Satoshi Suyama, Takamichi Inoue, Jun Mashino, Tetsuya Yamamoto, Makoto Taromaru
2015 B conf
Static sequence assisted out-of-band power suppression for DFT-s-OFDM.
PIMRC
Fumihiro Hasegawa, Shintaro Shinjo, Akihiro Okazaki, Atsushi Okamura, Loïc Brunel, David Mottier
2014 J jnl
Phase-Anchored SC-OFDM.
IEEE Wirel. Commun. Lett.
Fumihiro Hasegawa, Masatsugu Higashinaka, Akihiro Okazaki, Fumio Ishizu, Damien Castelain, Loïc Brunel, David Mottier
2012 J jnl
A Novel PAPR Reduction Scheme for SC-OFDM with Frequency Domain Multiplexed Pilots.
IEEE Commun. Lett.
Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo, Damien Castelain, David Mottier
2012 B conf
Channel estimation technique for OFDM systems spread by chirp sequences.
PIMRC
Keisuke Ozaki, Koji Tomitsuka, Akihiro Okazaki, Hiroyasu Sano, Hiroshi Kubo
2012 J jnl
Non-coherent MIMO Communication Systems Employing per Transmit Antenna Differential Mapping (PADM).
IEICE Trans. Commun.
Hiroshi Kubo, Masatsugu Higashinaka, Akihiro Okazaki
2011 — ed.
6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011, Osaka, Japan, June 1-3, 2011
CROWNCOM
Kazuhiro Uehara, Maria-Gabriella Di Benedetto, Akihiro Okazaki, Hitoshi Yoshino
2011 B conf
Peak power reduction techniques for multi-channel SC-OFDM.
PIMRC
Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo
2011 — conf
Super-Resolution Blind Channel Modeling.
ICC
Man-On Pun, Andreas F. Molisch, Philip V. Orlik, Akihiro Okazaki
2011 J jnl
Transmission Performance of Space Time Block Coding with Grouped Phase Rotation for Asymmetric MIMO-OFDM System.
IEICE Trans. Commun.
Akinori Nakajima, Kenichiro Tanaka, Akinori Ohashi, Hiroshi Hattori, Akihiro Okazaki, Hiroshi Kubo
2010 B conf
Low complexity frame synchronization methods for fading channels.
PIMRC
Fumihiro Hasegawa, Hiroyasu Sano, Akihiro Okazaki, Hiroshi Kubo
2008 B conf
Channel estimation with interference cancellation for a MIMO receiver using iterative equalization and decoding.
PIMRC
Masatsugu Higashinaka, Hiroshi Kubo, Akihiro Okazaki
2008 J jnl
Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO Spatial-Multiplexing System.
IEICE Trans. Commun.
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Akihiro Okazaki, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
2008 J jnl
Soft Decision Directed Channel Estimation with Interference Cancellation for a MIMO System Using Iterative Equalization and Decoding.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masatsugu Higashinaka, Hiroshi Kubo, Akihiro Okazaki, Yasutaka Ogawa, Takeo Ohgane, Toshihiko Nishimura
2007 B conf
Capacity Evaluation of MIMO-OFDM Systems using Reduced-Complexity ML Detectors in a Spatially Correlated Channel.
PIMRC
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya, Akihiro Okazaki
2007 — conf
Channel Quality Indicator Estimation for OFDMA Systems in the Downlink.
VTC Spring
Abdel-Majid Mourad, Loïc Brunel, Akihiro Okazaki, Umer Salim
2007 — conf
Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO System.
VTC Spring
Masatsugu Higashinaka, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya, Akihiro Okazaki
2006 J jnl
A Co-channel Interference Cancellation Method Using Low Dimensional Sphere Decoding for MIMO Communication Systems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masatsugu Higashinaka, Akihiro Okazaki, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
2006 B conf
Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems.
PIMRC
Akihiro Okazaki, Katsuyuki Motoyoshi, Masatsugu Higashinaka, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
2006 J jnl
Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Akihiro Okazaki, Katsuyuki Motoyoshi, Masatsugu Higashinaka, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya
2005 J jnl
A Multiple-Symbol Differential Detection Based on Channel Prediction for Fast Time-Varying Fading.
IEICE Trans. Commun.
Hiroshi Kubo, Akihiro Okazaki, Kazuo Tanada, Bertrand Penther, Keishi Murakami
2005 B conf
Performance Improvement for MIMO Communication Systems Employing Per Transmit Antenna Differential Encoding (PADE).
PIMRC
Hiroshi Kubo, Masatsugu Higashinaka, Akihiro Okazaki, Keishi Murakami
2001 — conf
A parallel blind demodulator in the presence of intersymbol interference.
ICC
Hiroshi Kubo, Akihiro Okazaki, Kazuo Tanada, Bertrand Penther, Makoto Miyake
2001 — conf
Experimental evaluation of a parallel blind demodulator combined with a Reed-Solomon decoder in the presence of intersymbol interference.
VTC Fall
Kazuo Tanada, Hiroshi Kubo, Akihiro Okazaki, Takeshi Uraguchi, Shuichi Hayashi, Hisashi Ishikawa, Atsushi Iwase, Jun Taniguchi
1993 J jnl
Distributed file management techniques based on an autonomous decentralized system concept.
Comput. Commun.
Masayuki Orimo, Sigeki Hirasawa, Akihiro Okazaki, Hirosi Fujise, Masuyuki Takeuchi, Kinji Mori