IEICE Trans

Akihiro OKAZAKI

An Equalization of PN-DSTBC for Concatenating with Spectral Precoding Kanako YAMAGUCHI Nicolas GRESSET Hiroshi NISHIMOTO Akihiro OKAZAKI Hiroyasu SANO Shusaku UMEDA Kaoru TSUKAMOTO Atsushi OKAMURA
Publication: Publication Date: 2019/03/01 Vol. E102-A No. 3 pp. 544-552 Type of Manuscript: PAPER Category: Mobile Information Network and Personal Communications Keyword: extremely high frequency, frequency diversity, spatial diversity, spectral precoding, DSTBC,
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A Compact RF Frontend Module of Active Phased Array Antenna for High SHF Wideband Massive MIMO in 5G Hideyuki NAKAMIZO Shintaro SHINJO Koji TSUTSUMI Satoshi YAMAGUCHI Hideharu YOSHIOKA Akihiro OKAZAKI Akinori TAIRA Kenichi TAJIMA
Publication: Publication Date: 2017/10/01 Vol. E100-C No. 10 pp. 818-824 Type of Manuscript: INVITED PAPER (Special Section on Microwave and Millimeter-Wave Technology) Category: Keyword: massive MIMO, active phased array antenna, high SHF, RF frontend, 5G,
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NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G Hiroshi NISHIMOTO Akinori TAIRA Hiroki IURA Shigeru UCHIDA Akihiro OKAZAKI Atsushi OKAMURA
Publication: Publication Date: 2017/08/01 Vol. E100-B No. 8 pp. 1215-1227 Type of Manuscript: Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System) Category: Wireless Communication Technologies Keyword: 5G, massive MIMO, MU-MIMO, inter-user interference, precoding, nonlinear block multi-diagonalization,
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Radio Access Technologies for Fifth Generation Mobile Communications System: Review of Recent Research and Developments in Japan Hidekazu MURATA Eiji OKAMOTO Manabu MIKAMI Akihiro OKAZAKI Satoshi SUYAMA Takamichi INOUE Jun MASHINO Tetsuya YAMAMOTO Makoto TAROMARU
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2016/08/01 Vol. E99-B No. 8 pp. 1638-1647 Type of Manuscript: INVITED PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC2015) Category: Terrestrial Wireless Communication/Broadcasting Technologies Keyword: fifth generation mobile communication systems, higher frequency band, massive MIMO, C-Plane/U-Plane splitting, C-RAN,
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Non-coherent MIMO Communication Systems Employing per Transmit Antenna Differential Mapping (PADM) Hiroshi KUBO Masatsugu HIGASHINAKA Akihiro OKAZAKI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/10/01 Vol. E95-B No. 10 pp. 3242-3251 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multiple-input multiple-output, transmit diversity, spatial multiplexing, differential space-time signal processing, maximum-likelihood detection, Viterbi detection,
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Transmission Performance of Space Time Block Coding with Grouped Phase Rotation for Asymmetric MIMO-OFDM System Akinori NAKAJIMA Kenichiro TANAKA Akinori OHASHI Hiroshi HATTORI Akihiro OKAZAKI Hiroshi KUBO
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/12/01 Vol. E94-B No. 12 pp. 3540-3549 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: asymmetric MIMO, OFDM, grouped phase rotation, STBC,
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Soft Decision Directed Channel Estimation with Interference Cancellation for a MIMO System Using Iterative Equalization and Decoding Masatsugu HIGASHINAKA Hiroshi KUBO Akihiro OKAZAKI Yasutaka OGAWA Takeo OHGANE Toshihiko NISHIMURA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/10/01 Vol. E91-A No. 10 pp. 2787-2797 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Communication Theory Keyword: MIMO, frequency domain equalization, iterative equalization, channel estimation, interference cancellation,
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Likelihood Estimation for Reduced-Complexity ML Detectors in a MIMO Spatial-Multiplexing System Masatsugu HIGASHINAKA Katsuyuki MOTOYOSHI Akihiro OKAZAKI Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2008/03/01 Vol. E91-B No. 3 pp. 837-847 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: MIMO, sphere decoding, QRD-M algorithm, soft-decision outputs, computational complexity,
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Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems Akihiro OKAZAKI Katsuyuki MOTOYOSHI Masatsugu HIGASHINAKA Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/10/01 Vol. E89-A No. 10 pp. 2549-2557 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: OFDM, FEQ, ISI, ICI,
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A Co-channel Interference Cancellation Method Using Low Dimensional Sphere Decoding for MIMO Communication Systems Masatsugu HIGASHINAKA Akihiro OKAZAKI Katsuyuki MOTOYOSHI Takayuki NAGAYASU Hiroshi KUBO Akihiro SHIBUYA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/10/01 Vol. E89-A No. 10 pp. 2526-2534 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: MIMO, sphere decoding, co-channel interference, computational complexity,
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A Multiple-Symbol Differential Detection Based on Channel Prediction for Fast Time-Varying Fading Hiroshi KUBO Akihiro OKAZAKI Kazuo TANADA Bertrand PENTHER Keishi MURAKAMI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2005/08/01 Vol. E88-B No. 8 pp. 3393-3400 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: Viterbi detection, maximum-likelihood detection, differential phase shift keying, fading channels,
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