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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IN, RCS, NV (Joint) |
2024-05-30 10:50 |
Fukuoka | Fukuoka University | Performance Analysis of Null-Space Expansion in Line-of-Sight Environment Kazuki Maruta (Tokyo Univ. of Science), Koji Ikuta (Kyocera) |
(To be available after the conference date) [more] | |
| 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 |
This paper proposes a novel precoding weight design that enhances interference suppression performance with low computat... [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 |
| 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 |
| 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 |
| WBS, MICT | 2021-07-30 16:00 |
Online | Online | [Encouragement Talk]
On the Filter Design for Full-Duplex Multiuser Systems Based on Single-Carrier Transmission Kyohei Amano (Mitsubishi Electric), Teruyuki Miyajima, Yoshiki Sugitani (Ibaraki Univ.) WBS2021-33 MICT2021-26 |
In this paper, we consider interference suppression for a full-duplex (FD) multiuser system based on single-carrier tran... [more] | WBS2021-33 MICT2021-26 p.60 |
| 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 |
| WBS, MICT | 2019-07-16 12:30 |
Ibaraki | Ibaraki University(Mito Campus) | [Poster Presentation]
Interference Suppression Filters for Full-Duplex Base-Station in Frequency-Selective Channels Kyohei Amano, Teruyuki Miyajima, Yoshiki Sugitani (Ibaraki Univ.) WBS2019-11 MICT2019-12 |
In this article, we propose a design method for filters at a base-station to jointly suppress self-interference, inter-u... [more] | WBS2019-11 MICT2019-12 pp.7-12 |
| 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 |
| RCS | 2018-10-18 11:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Lecture]
Phase Rotated Non-Orthogonal Multiple Access Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech.) RCS2018-157 |
As a multiple access technique candidate of 5G, non-orthogonal multiple access (NOMA) has attracted much attention for i... [more] | RCS2018-157 pp.39-44 |
| 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] | |
| 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] | |
| AP | 2017-04-21 15:50 |
Osaka | Osaka university | Transmit beam forming method using NOMA considering increased number of antennas Yoshiki Shirasawa, Kentaro Nishimori, Motoaki Suzuki, Hideo Makino (Niigata Univ) AP2017-21 |
As a technique for improving the transmission rate within a limited frequency band, Multiuser MIMO (MU-MIMO), which real... [more] | AP2017-21 pp.107-112 |
| CQ (2nd) |
2016-08-28 13:30 |
Ibaraki | Tsukubasan | Evaluation of antenna diversity effect in interference detection in an actual indoor environment Kazuma Ando, Kentaro Nishimori (Niigata Univ.), Takefumi Hiraguri, Yoshiaki Morino (NIT), Hideo Makino (Niigata Univ.) |
We have proposed an interference detection method in IEEE802.11ac based MU-MIMO transmission, and evaluated the effectiv... [more] | |
| RCS, RCC, ASN, NS, SR (Joint) |
2016-07-21 10:15 |
Aichi | Performance Analysis of Multiuser Detection for Uplink Non-orthogonal Multiple Access Based on Coded OFDM Yuta Hori, Hideki Ochiai (Yokohama Natl. Univ.) RCC2016-18 |
In order to realize wireless transmission of control information where latency and reliability are of significant impo... [more] |
RCC2016-18 pp.35-40 |
|
| RCS | 2016-04-22 14:35 |
Aomori | Romantopia, A Landscape of Forest and Stars, Hirosaki City | Experimental Verification of Multiuser Massive MIMO Null-Space Expansion using Measured Channel State Information Tatsuhiko Iwakuni, Kazuki Maruta, Atsushi Ohta, Yushi Shirato, Takuto Arai, Masataka Iizuka (NTT) RCS2016-21 |
Transmission capacity of multiuser MIMO systems is degraded by inter-user interference (IUI) caused due to channel time ... [more] | RCS2016-21 pp.117-122 |
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