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All Technical Committee Conferences (Searched in: All Years)
| 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 | 2024-04-26 09:55 |
Hiroshima | (Primary: On-site, Secondary: Online) |
Dimensionality Reduction of Interference Subspace on Simplified Null-Space Expansion for Massive MIMO Soya Nakamura, Yuki Sasaki, Kazuki Maruta (Tokyo Univ. of Science) RCS2024-7 |
(To be available after the conference date) [more] | RCS2024-7 pp.32-37 |
| RCS | 2024-04-26 13:00 |
Hiroshima | (Primary: On-site, Secondary: Online) |
Frequency sharing between ground and sky cells by applying beamforming and MU-MIMO canceller in mobile communication. Toshihisa Tsuji, Toshihisa Tsuji, Teruya Fujii (Tokyo Tech) RCS2024-11 |
(To be available after the conference date) [more] | RCS2024-11 pp.48-53 |
| AP | 2024-03-14 10:00 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
A Study on Antenna Configuration for LoS-MIMO in HAPS Feeder Link Kazuki Matsuura, Yoshichika Ohta (SoftBank) AP2023-201 |
High-Altitude Platform Station (HAPS) is a new mobile communications platform that enables ultrawide coverage and disast... [more] | AP2023-201 pp.1-6 |
| AP | 2024-03-14 10:25 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Direction of arrival estimation using neural networks and Uniform Cross Array for LoS-MIMO transmission Motoshi Tawada, Yoshichika Ohta (SoftBank) AP2023-202 |
The feeder link between the fixed ground station and the HAPS requires high capacity to accommodate the traffic of termi... [more] | AP2023-202 pp.7-10 |
| AP | 2024-03-15 10:00 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
RePH: Reconfigurable-Intelligent-Surface-Based Electronic Phantom
-- Study on MIMO Radar Channel Reconstruction Using Independent Amplitude/Phase Control Variable Load Circuit -- Chihiro Segawa, Kentaro Murata, Naoki Honma (Iwate Univ.) AP2023-211 |
We proposed a reconfigurable-intelligent-surface (RIS)-based electronic phantom (RePH) for an over-the-air (OTA) testing... [more] | AP2023-211 pp.57-62 |
| CAS, CS | 2024-03-14 15:10 |
Okinawa | [Special Invited Talk]
Challenges and Future Direction in Message-Passing Demodulation Keigo Takeuchi (TUT) CAS2023-121 CS2023-114 |
Message-passing demodulation is a promising method for demodulation in massive multiple-input multiple-output (MIMO) upl... [more] | CAS2023-121 CS2023-114 pp.58-63 |
|
| CAS, CS | 2024-03-15 09:45 |
Okinawa | 4 wave length division multiplexing visible light communication using neural network Naoki Umezawa, Saeko Oshiba (KIT) CAS2023-126 CS2023-119 |
In this study, we investigated a signal separation method for wavelength division multiplexing visible light wireless co... [more] | CAS2023-126 CS2023-119 pp.84-87 |
|
| 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 10:20 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Study on Time-Varying Tolerance Enhancement Using Null-Space Expansion Technique for Linear MIMO Reception Shohei Kobayashi, Yuki Ohi, Hidekazu Murata (Yamaguchi Univ.), Makoto Taromaru (Hukuoka Univ.), Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) RCS2023-251 |
The transmission performance deteriorate if the combining weights for interference suppression are fixed within a packet... [more] | RCS2023-251 pp.7-10 |
| 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 |
| RCS, SR, SRW (Joint) |
2024-03-14 10:25 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Study on improving frequency usage efficiency using baseband MIMO method aiming at 5G expansion(2)
-- MxN times communication method using real MIMO and baseband MIMO -- Maria Takigawa (Meiji Univ.), Gen-ichiro Ohta (YRP), Tetsushi Ikegami (Meiji Univ.) RCS2023-272 |
In this study, the spectrum efficiency is multiplied by M×N by superimposing MIMO in real space (rank M) and baseband MI... [more] | RCS2023-272 pp.106-111 |
| RCS, SR, SRW (Joint) |
2024-03-15 13:00 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Low Complexity CSI Feedback Method Using Reformer Yuki Saito, Tomoaki Ohtsuki (Keio Univ.) RCS2023-285 |
In Massive MIMO (Multiple-Input Multiple-Output), the feedback overhead of downlink channel state information (CSI) from... [more] | RCS2023-285 pp.134-139 |
| RCS, SR, SRW (Joint) |
2024-03-15 13:50 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Time-Varying Channel Prediction Considering Angle-of-Arrival Variation for Hybrid Massive MIMO Communications Yuki Ono, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech), Satoshi Suyama, Takahiro Asai (NTT DOCOMO) RCS2023-287 |
For 5G massive MIMO systems, hybrid beamforming (HB), which is composed of analog beamforming (AB) and digital beamformi... [more] | RCS2023-287 pp.146-151 |
| RCS, SR, SRW (Joint) |
2024-03-15 16:40 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
Relationship between amount of collaboration traffic and error performance of terminal collaborated MIMO reception using adaptive collaboration scheme Shunya Morimoto, Hayato Sugai, Hidekazu Murata (Yamaguchi Univ.), Daisuke Murayama, Toshiro Nakahira, Tomoaki Ogawa (NTT) RCS2023-293 |
This paper discusses terminal-collaborated MIMO reception, in which multiple wireless terminals in the neighborhood coll... [more] | RCS2023-293 pp.182-186 |
| IE, MVE, CQ, IMQ (Joint) [detail] |
2024-03-15 13:30 |
Okinawa | Okinawa Sangyo Shien Center (Primary: On-site, Secondary: Online) |
Coexistence Scheme with Mobile Terminals by Null-Space Expansion in Wireless Power Transfer Shuma Okita, Yuki Sasaki (Tokyo Univ. of Science), Takahiro Matsuda (Tokyo Metropolitan Univ.), Tomotaka Kimura (Doshisha Univ.), Takefumi Hiraguri (NIT), Kazuki Maruta (Tokyo Univ. of Science) CQ2023-86 |
Wireless Power Transfer (WPT) is a promising technology that can supply energy to an increasing number of IoT terminals ... [more] | CQ2023-86 pp.81-86 |
| SIP, SP, EA, IPSJ-SLP [detail] | 2024-03-01 11:40 |
Okinawa | (Primary: On-site, Secondary: Online) |
Inverse filter design of Shoulder-mounted Wearable Speaker using H-infinity control theory
-- Extension and evaluation to MIMO systems -- Kenji Kita (Daido Univ.) EA2023-116 SIP2023-163 SP2023-98 |
The sound field reproduction technology using a shoulder-mounted wearable speakers is a transaural system that can also ... [more] | EA2023-116 SIP2023-163 SP2023-98 pp.321-326 |
| ED, MW | 2024-01-25 16:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
A GaN Power Amplifier Module for 5G Massive MIMO Base-station Applications Satoru Honda, Akio Matsushita, Eri Teranishi, katsuya Kato, Shuichi Sakata, kazuya Yamamoto, Tetsuo Kunii (Mitsubishi Electric) ED2023-70 MW2023-162 |
This report describes a 16W-class GaN power amplifier module prototyped for 5G Massive-MIMO base-station applications. T... [more] | ED2023-70 MW2023-162 pp.19-22 |
| ED, MW | 2024-01-26 09:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Design of Decoupling Circuit between Transmitting and Receiving Antennas. TAN Zhi Earn, Takagi Masaya (TUT), Saeki Hiromasa (Murata Mfg.), Tamura Masaya (TUT) ED2023-71 MW2023-163 |
This study proposes the design of a decoupling circuit to suppress the coupling between transmitting and receiving anten... [more] | ED2023-71 MW2023-163 pp.23-28 |
| CQ, CBE (Joint) |
2024-01-26 14:40 |
Kumamoto | Kurokawa-Onsen (Primary: On-site, Secondary: Online) |
Effect of Beamforming on Interference Mitigation in High-Density Drone Networks Takumu Uda, Takahiro Matsuda (Tokyo Metropolitan Univ.), Wataru Yamada (NTT) CQ2023-68 |
In this article, we consider high-density drone networks, where drones are deployed densely to transfer data from terres... [more] | CQ2023-68 pp.88-93 |
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