Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2024-04-26 09:30 |
Hiroshima |
(Primary: On-site, Secondary: Online) |
Performance Comparison of Null-Space Expansion in Low Computation Block Diagonalization-based Multi-User Massive MIMO Yuki Sasaki (Tokyo Univ, of Science), Kabuto Arai (The Univ. of Electro-Communications), Kazuki Maruta (Tokyo Univ, of Science) RCS2024-6 |
(To be available after the conference date) [more] |
RCS2024-6 pp.26-31 |
RCS, SR, SRW (Joint) |
2024-03-13 09:55 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
User Scheduling based on Expanded Null-Space for Massive MIMO Yuki Sasaki (Tokyo Univ. of Scince), Kabuto Arai (The Univ. of Electro-Communications), Jin Nakazato (UTokyo), Kazuki Maruta (Tokyo Univ. of Scince) RCS2023-250 |
This paper proposes a user scheduling scheme for multi-user massive MIMO (MU-mMIMO), particularly effective in time-vary... [more] |
RCS2023-250 pp.1-6 |
RCS, SR, SRW (Joint) |
2024-03-13 13:10 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Beamforming/Null-steering for Millimeter-wave Transmission in High Mobility Environment Kazuki Maruta, Yuki Sasaki, Sojin Ozawa (Tokyo Univ. of Science), Kazuto Arai (The Univ. of Electro-Communications), Jin Nakazato, Manabu Tsukada (UTokyo) SRW2023-52 |
Spatial multiplexing performance of the multi-user MIMO is deteriorated in the mobility environment, especially using th... [more] |
SRW2023-52 p.39 |
AP, RCS (Joint) |
2023-11-15 16:00 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Location-Based Broad-Range Null-Steering in V2I Multiuser MIMO Transmission Yuki Sasaki, Sojin Ozawa (Tokyo Univ. of Science), Kabuto Arai (The Univ. of Electro-Communications), Jin Nakazato, Manabu Tsukada (UTokyo), Kazuki Maruta (Tokyo Univ. of Science) RCS2023-161 |
This paper proposes a location based broad-range null-steering (BRNS) scheme for vehicle to everything (V2X) multiuser M... [more] |
RCS2023-161 pp.51-56 |
MIKA (3rd) |
2023-10-11 14:30 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Performance Evaluation of collaborative MIMO Transmission Considering Overhead Rena Kurokawa, Haruya Ikeda, Kazuki Maruta (Tokyo Univ. of Science) |
Terminal collaborative Multiple-Input Multiple-Output (MIMO) transmission technology has been proposed as an advanced fo... [more] |
|
RCS, SAT (Joint) |
2023-08-31 11:20 |
Nagano |
Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
Null Spatial Expansion for Low-Complexity Block Diagonalization-based Multiuser Massive MIMO Yuki Sasaki, Kazuki Maruta (Tokyo Univ. of Science), Kabuto Arai (UEC) RCS2023-103 |
This paper proposes a new block diagonalization (BD)-based null-space expansion for multiuser Massive MIMO which offers ... [more] |
RCS2023-103 pp.9-14 |
RCC, ISEC, IT, WBS |
2023-03-14 15:20 |
Yamaguchi |
(Primary: On-site, Secondary: Online) |
High Speed Optical Wireless Uplink using MU-MIMO with Angle Diversity Xuejuan Zhu, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama (Nagoya Univ) IT2022-85 ISEC2022-64 WBS2022-82 RCC2022-82 |
This work proposes a high-speed uplink optical wireless communication system using multiuser multiple input multiple out... [more] |
IT2022-85 ISEC2022-64 WBS2022-82 RCC2022-82 pp.109-113 |
SRW, SeMI, CNR (Joint) |
2022-11-24 13:40 |
Tochigi |
Epinard Nasu (Primary: On-site, Secondary: Online) |
A Study on Multiuser Wireless Powered MIMO Relay Transmission with Interference Keita Hayashi, Shigenobu Sasaki (Niigata Univ) SRW2022-18 |
In this paper, multiuser wireless powered MIMO relay transmission is investigated for potential wireless sensor networks... [more] |
SRW2022-18 pp.13-18 |
RCS |
2021-10-21 14:50 |
Online |
Online |
[Invited Talk]
Generalization of a joint transmit-receive diversity and its application to multi-user MIMO communications Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2021-126 |
In this paper, joint transmit-receiver diversity (JTRD) is presented, which jointly perform transmit diversity and recei... [more] |
RCS2021-126 pp.49-54 |
RCS |
2021-06-23 13:30 |
Online |
Online |
Investigation of PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals in Multiple-Antenna AF Relay Transmission Yuki Sekiguchi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2021-39 |
In the 5th generation mobile communication system and beyond, the importance of relay transmission increases in order to... [more] |
RCS2021-39 pp.62-67 |
SIP, IT, RCS |
2021-01-21 09:25 |
Online |
Online |
Transmission Performance for Multiuser MIMO System Under the multi path fading and the Spatial Correlations Environment Shogo Maeda, Hideaki Matsue (SUS) IT2020-70 SIP2020-48 RCS2020-161 |
This paper analyzed transmission performances for multiuser-MIMO system according to the number of users and spatially c... [more] |
IT2020-70 SIP2020-48 RCS2020-161 pp.40-45 |
CQ, CBE (Joint) |
2021-01-20 09:45 |
Online |
Online |
Study on signal selection in blind based virtual massive array Sota Takahashi, Issei Watanabe, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Tomoki Murakami (NTT) CQ2020-60 |
In fifth-generation (5G) and later (B5G/6G) systems, massive multiple-input-multiple-output (MIMO) systems using a large... [more] |
CQ2020-60 pp.1-4 |
RCS |
2020-06-25 13:50 |
Online |
Online |
User Group Selection Method in Multiuser MIMO-OFDM Transmission with Adaptive PAPR Reduction Using Null Space in MIMO Channel Shyunsei Shin (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-37 |
In this paper, we investigate the user group selection method in multiuser multiple-input multiple-output (MIMO)- orthog... [more] |
RCS2020-37 pp.85-90 |
SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-10 14:15 |
Osaka |
I-Site Nanba(Osaka) |
A Single-Carrier Block Multiuser MIMO System with Pre-Cancellation of Known Symbol Padding Interference Hayato Fukuzono, Keita Kuriyama, Toshio Ito, Masafumi Yohioka, Tsutomu Tatsuta (NTT) RCS2019-103 |
A single-carrier (SC) block, downlink multiuser multiple-input multiple-output (MIMO) system performs transmit beamformi... [more] |
RCS2019-103 pp.13-17 |
SIP, IT, RCS |
2018-01-22 16:10 |
Kagawa |
Sunport Hall Takamatsu |
Transmission Performance for Multiuser MIMO System According to Spatial Correlations and errors of CSI feedback under Multipath Fading Environments Kyouka Abe (Grad. Sch. TUSS), Syouta Wakabayashi (TUSS), Naoki Ginoza (Grad. Sch. TUSS), Kazuhiro Yamaguchi, Hideaki Matsue (TUSS) IT2017-78 SIP2017-86 RCS2017-292 |
This paper analyzed the influence of errors of CSI feedback and according to spatially correlations to network performa... [more] |
IT2017-78 SIP2017-86 RCS2017-292 pp.137-142 |
AP, RCS (Joint) |
2017-11-10 15:25 |
Fukuoka |
Fukuoka University |
[Invited Lecture]
On Improving Efficiency in Wireless Systems Based on the Coordination of Elemental Technologies Fumiaki Maehara (Waseda Univ.) AP2017-142 RCS2017-246 |
Recent wireless systems are developed as a complicated blend of various elemental technologies and therefore, it is impo... [more] |
AP2017-142 RCS2017-246 p.187(AP), p.235(RCS) |
US |
2017-08-31 13:50 |
Kanagawa |
|
Research on time reversal underwater acoustic communication
-- Application for spatial division multiplexing in comparison with OFDM -- Takuya Shimura, Yukihiro Kida, Mitsuyasu Deguchi (JAMSTEC) US2017-52 |
Time reversal is an effective method for channel equalization in underwater acoustic communication. Its temporal and spa... [more] |
US2017-52 pp.31-36 |
CQ (2nd) |
2017-08-27 13:50 |
Saitama |
Nippon Institute of Technology |
[Poster Presentation]
Performance evaluation on NOMA and transmit BF with user selection by the number of beams Yoshiki Shirasawa, Kentaro Nishimori, Hideo Makino (Niigata Univ) |
As a technique for improving the transmission rate within a limited frequency band, Multiuser MIMO (MU-MIMO), which real... [more] |
|
RCS, SAT (Joint) |
2017-08-17 10:50 |
Niigata |
Niigata Univ. |
Evaluation on Uplink MU-MIMO with Distributed Array with Multiple versus One Switches Sho Yoshida, Soichi Ito, Kentaro Nishimori (Niigata Univ.), Tomoki Murakami, Koichi Ishihara, Yasushi Takatori (NTT) RCS2017-147 |
Multiuser MIMO (MU-MIMO) techniques provide the high frequency efficiency. However, it is known that the frequency effic... [more] |
RCS2017-147 pp.25-30 |
AP (2nd) |
2017-06-28 - 2017-06-30 |
Hokkaido |
Hokkaido University |
[Poster Presentation]
Performance evaluation on NOMA with transmit BF by the number of beams Yoshiki Shirasawa, Kentaro Nishimori, Hideo Makino (Niigata Univ) |
[more] |
|