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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CQ | 2024-06-26 15:30 |
Okinawa | (Primary: On-site, Secondary: Online) |
Study on Performance Improvement of Time Division Scheduling for Wireless Power Transfer Yuna Sawada, Shino Shiraki, Chika Yajima, Takahiro Matsuda (TMU), Takefumi Hiraguri (NIT), Kazuki Maruta (TUS), Tomotaka Kimura (DU) |
[more] | |
| RCS | 2024-06-19 11:50 |
Okinawa | (Primary: On-site, Secondary: Online) |
Environment-Specific Beam Search Using Machine Learning for Connected Autonomous Vehicle Ryo Iwaki, Jin Nakazato (UT), Kazuki Maruta (TUS), Manabu Tsukada, Hideya Ochiai, Hiroshi Esaki (UT) |
[more] | |
| IN, RCS, NV (Joint) |
2024-05-30 10:25 |
Fukuoka | Fukuoka University | Evaluation of ACLR and Beam Detection Characteristics for Fast Beam Steering with Discrete Subcarrier Arrangement Hideya So (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) |
[more] | |
| 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) |
[more] | |
| IN, RCS, NV (Joint) |
2024-05-31 14:40 |
Fukuoka | Fukuoka University | Performance Evaluation of Collaborative Uplink MIMO Transmission Considering Overhead Rena Kurokawa, Kazuki Maruta (Tokyo Univ. of Science) |
[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 | 2024-04-26 09:55 |
Hiroshima | (Primary: On-site, Secondary: Online) |
Performance Improvement by Dimensionality Reduction of Interference Subspace on One-Shot Null-Space Expansion for Massive MIMO Soya Nakamura, Yuki Sasaki, Kazuki Maruta (Tokyo Univ. of Science) RCS2024-7 |
Massive MIMO Null Space Expansion (NSE) is effective multiuser precoding scheme in time-varying channels，taking advantag... [more] | RCS2024-7 pp.32-37 |
| RCS | 2024-04-26 11:30 |
Hiroshima | (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Effectiveness of Crowdsourced Radio Unit (CRU) to Accommodate Multiple Terminals in Dense Environment Hideya So (SIT), Kazuki Maruta (TUS), Yu Nakayama (TUAT) RCS2024-10 |
Centralized Radio Access Networks (C-RANs) have been considered to accommodate the increasing mobile traffic year by yea... [more] | RCS2024-10 p.47 |
| 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 12:45 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Beyond 5G Open RAN Platform through Cross-Domain Collaboration Jin Nakazato (Univ. of Tokyo), Kazuki Maruta (Tokyo Univ. of Science), Gia Khanh Tran, Naoya Okubo, Kei Sakaguchi (Titech) SRW2023-51 |
Since the global launch of commercial services in 2019, 5G has already been around for approximately four years. During ... [more] | SRW2023-51 pp.33-38 |
| 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 10:30 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Short Paper]
A Study on Cell ID Detection Performance by Phase Rotation with Fast Beam Steering Kotaro Tanaka, Hideya So (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) SR2023-97 |
Beamforming using multiple antenna elements has been considered to increase high-speed wireless communications, but it r... [more] | SR2023-97 pp.49-51 |
| 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, IT, RCS | 2024-01-19 09:55 |
Miyagi | (Primary: On-site, Secondary: Online) |
A Study on Stable Beam Tracking from Multiple Roadside Devices in Cooperative Automatic Operation Kengo Suzuki, Jin Nakazato (UTOKYO), Kazuki Maruta (TUS), Ehsan Javanmardi, Manabu Tsukada, Hiroshi Esaki (UTOKYO) IT2023-57 SIP2023-90 RCS2023-232 |
[more] | IT2023-57 SIP2023-90 RCS2023-232 pp.145-150 |
| OCS, CS (Joint) |
2024-01-12 13:05 |
Kagoshima | Implementation of Deep Joint Source-Channel Coding on 5G System Keigo Matsumoto, Tomoka Mori, Yoshiaki Inoue (Osaka Univ.), Yuko Hara-Azumi (Tokyo Tech.), Kazuki Maruta (TUS), Yu Nakayama (TUAT), Yoshinori Shinohara, Hiroki Ikeda (Abit corp.), Daisuke Hisano (Osaka Univ.) CS2023-101 |
(Advance abstract in Japanese is available) [more] | CS2023-101 pp.35-38 |
|
| NS, RCS (Joint) |
2023-12-14 16:50 |
Fukuoka | Kyushu Institute of Technology Tobata campus, and Online (Primary: On-site, Secondary: Online) |
Broad-Range Null-Steering and Beam-Space Expansion 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) RCS2023-188 |
[more] | RCS2023-188 pp.52-57 |
| UWT (2nd) |
2023-11-27 17:15 |
Shiga | Ritsumeikan University Biwako-Kusatsu Campus (BKC) | Multi-antenna Passband Channel Simulator for Underwater Acoustic Communications Soma Sumita, Haruya Ikeda (Tokyo Univ. of Science), Daisuke Hisano (Osaka Univ.), Hiroshi Kubo (Ritsumeikan Univ.), Kazuki Maruta (Tokyo Univ. of Science) |
Recently, research on underwater acoustic communication in Beyond 5G/6G has attracted much attention. Since the speed of... [more] | |
| AP, RCS (Joint) |
2023-11-15 13:25 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Performance Evaluation of Beam Search Scheme using Fast Beam Steering Hideya So, Kouki Namegaya (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) RCS2023-156 |
This report proposes a multiple beam searches with fast beam steering within a single synchronization signal block (SSB)... [more] | RCS2023-156 pp.24-28 |
| AP, RCS (Joint) |
2023-11-15 15:35 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Adaptive Fast Beam Tracking Algorithm for Various Road Environment Ryo Iwaki, Jin Nakazato (UTokyo), Sojin Ozawa, Kazuki Maruta (TUS), Muhammad Asad, Ehsan Javanmardi, Manabu Tsukada, Hideya Ochiai, Hiroshi Esaki (UTokyo) RCS2023-160 |
The commercialization of 5G has been initiated for a while. Furthermore, millimeter wave (mmWave) has been introduced to... [more] | RCS2023-160 pp.45-50 |
| 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 |
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