IEICE Trans

Tomoki MURAKAMI

Efficient Zero-Knowledge Proofs of Graph Signature for Connectivity and Isolation Using Bilinear-Map Accumulator Toru NAKANISHI Hiromi YOSHINO Tomoki MURAKAMI Guru-Vamsi POLICHARLA
Publication: Publication Date: 2022/03/01 Vol. E105-A No. 3 pp. 389-403 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: zero-knowledge proofs, signatures, graph, bilinear map, accumulator, pairing,
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Centralized Control Method of Multi-Radio and Terminal Connection for 802.11 Wireless LAN Mixed Environment Toshiro NAKAHIRA Koichi ISHIHARA Motoharu SASAKI Hirantha ABEYSEKERA Tomoki MURAKAMI Takatsune MORIYAMA Yasushi TAKATORI
Publication: Publication Date: 2022/02/01 Vol. E105-B No. 2 pp. 186-195 Type of Manuscript: Special Section PAPER (Special Section on Emerging Communication Technologies in Conjunction with Main Topics of ICETC2020) Category: Keyword: multi-radio control, terminal connection control, 802.11ax WLAN, spatial reuse, centralized control,
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Dynamic Terminal Connection Control Using Multi-Radio Unlicensed Access for 5G Evolution and Beyond Toshiro NAKAHIRA Tomoki MURAKAMI Hirantha ABEYSEKERA Koichi ISHIHARA Motoharu SASAKI Takatsune MORIYAMA Yasushi TAKATORI
Publication: Publication Date: 2021/09/01 Vol. E104-B No. 9 pp. 1138-1146 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G Evolution and Beyond) Category: Keyword: multi-radio, terminal connection control, WLAN, spatial reuse, centralized control,
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An Actual Stadium Verification of WLAN Using a Distributed Smart Antenna System (D-SAS) Tomoki MURAKAMI Koichi ISHIHARA Hirantha ABEYSEKERA Yasushi TAKATORI
Publication: Publication Date: 2021/01/01 Vol. E104-B No. 1 pp. 109-117 Type of Manuscript: PAPER Category: Terrestrial Wireless Communication/Broadcasting Technologies Keyword: WLAN, IEEE 802.11ac, distributed antenna system (DAS), smart antenna system (SAS), antenna switching,
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Dynamic Group-Based Antenna Selection for Uplink Multi-User MIMO in Distributed Antenna System Sho YOSHIDA Kentaro NISHIMORI Soichi ITO Tomoki MURAKAMI Koichi ISHIHARA Yasushi TAKATORI
Publication: Publication Date: 2018/07/01 Vol. E101-B No. 7 pp. 1552-1560 Type of Manuscript: Special Section PAPER (Special Section on Communication Quality in Wireless Networks) Category: Keyword: multi-user multiple-input multiple-output (MU-MIMO), distributed antenna system (DAS), antenna selection, ray-tracing method, cable loss,
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On the Feasibility of an Adaptive Movable Access Point System in a Static Indoor WLAN Environment Tomoki MURAKAMI Shingo OKA Yasushi TAKATORI Masato MIZOGUCHI Fumiaki MAEHARA
Publication: Publication Date: 2018/07/01 Vol. E101-B No. 7 pp. 1693-1700 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: wireless local area network (WLAN) system, adaptive movable access point (AMAP) system, traffic offload, k-means method, time of arrival (ToA), receive signal strength indicator (RSSI), signal to interference and noise ratio (SINR),
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CSI Feedback Reduction Method for Downlink Multiuser MIMO Transmission Using Dense Distributed Antenna Selection Tomoki MURAKAMI Koichi ISHIHARA Yasushi TAKATORI Masato MIZOGUCHI Kentaro NISHIMORI
Publication: Publication Date: 2018/02/01 Vol. E101-B No. 2 pp. 426-433 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016) Category: MIMO Keyword: multiuser multiple input multiple output (MU-MIMO), antenna selection, wireless LAN (WLAN), distributed antenna system (DAS), channel state information (CSI),
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Weighted-Combining Calibration on Multiuser MIMO Systems with Implicit Feedback Hayato FUKUZONO Tomoki MURAKAMI Riichi KUDO Yasushi TAKATORI Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2015/04/01 Vol. E98-B No. 4 pp. 701-713 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: multiple-input multiple-output (MIMO), channel reciprocity, implicit feedback, calibration, minimum mean square error (MMSE),
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Implementation and Evaluation of Real-Time Distributed Zero-Forcing Beamforming for Downlink Multi-User MIMO Systems Tomoki MURAKAMI Koichi ISHIHARA Riichi KUDO Yusuke ASAI Takeo ICHIKAWA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/10/01 Vol. E96-B No. 10 pp. 2521-2529 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012) Category: Wireless Communication Technologies Keyword: multiuser MIMO, inter-cell interference, distributed system, wireless LAN system,
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Performance Evaluation of Interference-Aware Multi-Cell Beamforming for an Overlapping Cells Environment Tomoki MURAKAMI Riichi KUDO Takeo ICHIKAWA Naoki HONMA Masato MIZOGUCHI
Publication: IEICE TRANSACTIONS on Communications Publication Date: 2013/06/01 Vol. E96-B No. 6 pp. 1492-1501 Type of Manuscript: PAPER Category: Antennas and Propagation Keyword: MIMO, multi-cell beamforming, inter-cell interference (ICI), WLAN, decentralized control scheme,
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