IEICE Trans

Kazushi MURAOKA

Two-Step User Selection Algorithm in Multi-User Massive MIMO with Hybrid Beamforming for 5G Evolution Nobuhide NONAKA Satoshi SUYAMA Tatsuki OKUYAMA Kazushi MURAOKA Yukihiko OKUMURA
Publication: Publication Date: 2021/09/01 Vol. E104-B No. 9 pp. 1089-1096 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G Evolution and Beyond) Category: Keyword: 5G, massive-MIMO, multi-user MIMO, hybrid beamforming, low-complexity,
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28 GHz-Band Experimental Trial Using the Shinkansen in Ultra High-Mobility Environment for 5G Evolution Nobuhide NONAKA Kazushi MURAOKA Tatsuki OKUYAMA Satoshi SUYAMA Yukihiko OKUMURA Takahiro ASAI Yoshihiro MATSUMURA
Publication: Publication Date: 2021/09/01 Vol. E104-B No. 9 pp. 1000-1008 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G Evolution and Beyond) Category: Keyword: 5G evolution, massive MIMO, ultra high-mobility, high speed train, 28GHz band,
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Field Trial of 28GHz Band 5G Downlink Massive MIMO Employing Beam Tracking in Railway Environment Yuta TAKAHASHI Tatsuki OKUYAMA Kazushi MURAOKA Satoshi SUYAMA Jun MASHINO Yukihiko OKUMURA
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1411-1417 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond) Category: Keyword: 5G, high mobility, massive MIMO, beamforming, beam tracking,
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Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation Yukihiko OKUMURA Satoshi SUYAMA Jun MASHINO Kazushi MURAOKA
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1352-1362 Type of Manuscript: INVITED PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond) Category: Keyword: fifth generation mobile communication system, radio access technology, higher frequency band, experimental trial, system trial,
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Performance Evaluation of Low Complexity Digital Beamforming Algorithms by Link-Level Simulations and Outdoor Experimental Trials for 5G Low-SHF-Band Massive MIMO Tatsuki OKUYAMA Satoshi SUYAMA Jun MASHINO Kazushi MURAOKA Kohei IZUI Kenichiro YAMAZAKI Yukihiko OKUMURA
Publication: Publication Date: 2019/08/01 Vol. E102-B No. 8 pp. 1382-1389 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond) Category: Keyword: 5G, Massive MIMO, digital beamforming, outdoor experimental trials, low SHF bands,
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Relay Selection Scheme Based on Path Throughput for Device-to-Device Communication in Public Safety LTE Taichi OHTSUJI Kazushi MURAOKA Hiroaki AMINAKA Dai KANETOMO Yasuhiko MATSUNAGA
Publication: Publication Date: 2018/05/01 Vol. E101-B No. 5 pp. 1319-1327 Type of Manuscript: PAPER Category: Terrestrial Wireless Communication/Broadcasting Technologies Keyword: device-to-device (D2D) communication, public safety LTE, UE-to-network relay, relay selection,
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Signal Detection for EM-Based Iterative Receivers in MIMO-OFDM Mobile Communications Kazushi MURAOKA Kazuhiko FUKAWA Hiroshi SUZUKI Satoshi SUYAMA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2014/11/01 Vol. E97-B No. 11 pp. 2480-2490 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: mobile communication, MIMO-OFDM, EM algorithm, factor graph, message passing, signal detection, channel estimation,
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Interference Monitoring-Based Spectrum Management to Maximize White Space Utilization for Cognitive Radios Kazushi MURAOKA Hiroto SUGAHARA Masayuki ARIYOSHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/03/01 Vol. E96-B No. 3 pp. 869-879 Type of Manuscript: PAPER Category: Terrestrial Wireless Communication/Broadcasting Technologies Keyword: cognitive radio, opportunistic spectrum access, spectrum management, Interference Monitoring,
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Cooperative Sensing with Distributed Pre-Detection for Gathering Sensing Information on Shared Primary Spectrum Mai OHTA Takeo FUJII Kazushi MURAOKA Masayuki ARIYOSHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/11/01 Vol. E95-A No. 11 pp. 1980-1990 Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems) Category: Communication Theory and Signals Keyword: cognitive radio, cooperative sensing, orthogonal narrowband signal, spectrum sharing, aggregated interference, transmit power design,
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Iterative MAP Receiver Employing Forward Channel Estimation via Message Passing for OFDM over Fast Fading Channels Kazushi MURAOKA Kazuhiko FUKAWA Hiroshi SUZUKI Satoshi SUYAMA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2012/05/01 Vol. E95-B No. 5 pp. 1770-1783 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: mobile communication, OFDM, EM algorithm, factor graph, message passing, channel estimation, turbo processing,
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Joint Signal Detection and Channel Estimation Using Differential Models via EM Algorithm for OFDM Mobile Communications Kazushi MURAOKA Kazuhiko FUKAWA Hiroshi SUZUKI Satoshi SUYAMA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2011/02/01 Vol. E94-B No. 2 pp. 533-545 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: mobile communication, OFDM, EM algorithm, channel estimation, Kalman filter, differential model,
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A Novel Method for Information Gathering by Using Orthogonal Narrowband Signal for Cooperative Sensing in Cognitive Radio Mai OHTA Takeo FUJII Kazushi MURAOKA Masayuki ARIYOSHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/12/01 Vol. E92-B No. 12 pp. 3625-3634 Type of Manuscript: Special Section PAPER (Special Section on Dynamic Spectrum Access) Category: Spectrum Sensing Keyword: cognitive radio, cooperative sensing, orthogonal narrrowband signal, spectrum sharing,
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A Robust Spectrum Sensing Method Based on Maximum Cyclic Autocorrelation Selection for Dynamic Spectrum Access Kazushi MURAOKA Masayuki ARIYOSHI Takeo FUJII
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2009/12/01 Vol. E92-B No. 12 pp. 3635-3643 Type of Manuscript: Special Section PAPER (Special Section on Dynamic Spectrum Access) Category: Spectrum Sensing Keyword: cognitive radio, dynamic spectrum access (DSA), spectrum sensing, cyclostationary feature detection (CFD), maximum cyclic autocorrelation selection (MCAS),
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