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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SIP, IT | 2025-01-29 16:10 |
Yamaguchi | Kaikyou-messe (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Coordinated Control Scheme of Nullforming and Resource Allocation for Coverage Expansion in Integrated HAPS-Terrestrial Networks Tsutomu Ishikawa, Koji Tashiro, Koichi Maki, Kenji Hoshino (SoftBank Corp.) |
(To be available after the conference date) [more] | |
| SRW, SeMI (Joint) |
2024-11-29 15:40 |
Tokyo | Tokyo Univ. of Science Katsushika Campus (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Optimization Method for MU-MIMO Using a Directivity Derivation Approach Based on Spherical Mode Expansion Shunta Naganuma, Maki Arai (Tokyo Univ. of Science), Aohan Li (The Univ. of Electro-Communications), Mikio Hasegawa (Tokyo Univ. of Science)  SRW2024-48 SeMI2024-60 |
This paper proposes an optimization method for MU-MIMO systems using antenna directivity derivation based on spherical... [more] |
SRW2024-48 SeMI2024-60 pp.96-101 |
| MIKA (3rd) |
2024-10-29 14:35 |
Okayama | Okayama Convention Center (Okayama) | [Poster Presentation]
A Study on Combination of Multiple Access Schemes Employing Multiple Transmit Antennas in Time-selective Fading Channels Yuka Kiura, Nozomi Sasaki, Shuhei Saito, Hirofumi Suganuma, Fumiaki Maehara (Waseda Univ.) |
To improve spectral efficiency in multiuser scenarios, multiple access schemes utilizing multiple antennas, such as non-... [more] | |
| MIKA (3rd) |
2024-10-29 14:35 |
Okayama | Okayama Convention Center (Okayama) | [Poster Presentation]
A Study of Antenna Placement Method in Antenna-Cluster-Centric Cell-Free Large-Scale MIMO Systems Kazuya Ogata, Sijie Xia, Masataka Miyake, Suguru Kameda (Hiroshima Univ.), Fumiyuki Adachi (Tohoku Univ.) |
Cell-free massive multiple-input and multiple-output (CF-mMIMO) has been attracting much attention as a key technology ... [more] | |
| RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-18 09:00 |
Hokkaido | Hokkaido Citizens Activities Promotion Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A study on frequency sharing between ground and sky cells by applying beamforming and orthogonal polarization MU-MIMO canceller for cellular mobile system Toshihisa Tsuji, Teruya Fujii (TokyoTech) RCS2024-94 |
To make mobile communication systems available even in the sky, a “three-dimensional spatial cell configuration” has bee... [more] | RCS2024-94 pp.46-51 |
| RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-18 09:25 |
Hokkaido | Hokkaido Citizens Activities Promotion Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Base Station Coordinated Multi-Cell MU-MIMO Canceller considering to the Accuracy of Channel Estimation Ryohei Maeda, Takuya Kaneda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2024-95 |
In mobile communication systems such as 5G, ultra-high-speed data transmission anywhere within a cell is expected. In ce... [more] | RCS2024-95 pp.52-57 |
| RCS | 2024-06-19 10:50 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Overloaded MU-MIMO with a receive spatial filter Kosuke Ota, Satoshi Denno, Yafei Hou (Okayama Univ.) RCS2024-33 |
This paper proposes a method to improve system throughput by applying overloaded communication in downlink Multi-User - ... [more] | RCS2024-33 pp.29-34 |
| RCS | 2024-06-20 13:25 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
A study of cell configuration method to realize MU-MIMO efficiently using massive antenna at base station Kohei Mitsumoto, Teruya Fujii (Tokyo Tech) RCS2024-60 |
In mobile communications, evaluating the communication capacity of MU-MIMO transmission, where multiple terminals simul... [more] |
RCS2024-60 pp.191-196 |
| RCS | 2024-04-26 13:00 |
Hiroshima | (Hiroshima, Online) (Primary: On-site, Secondary: Online) |
Frequency sharing between ground and sky cells by applying beamforming and MU-MIMO canceller in mobile communication. Toshihisa Tsuji, Kohei Mitsumoto, Teruya Fujii (Tokyo Tech) RCS2024-11 |
To enable the use of mobile communication systems in the sky, we propose a "three-dimensional space cell structure" that... [more] | RCS2024-11 pp.48-53 |
| SIP, IT, RCS | 2024-01-19 11:20 |
Miyagi | (Miyagi, Online) (Primary: On-site, Secondary: Online) |
Parameter Reduction for Interference Coordination from HAPS to Terrestrial Systems Using Null Sweeping Tsutomu Ishikawa, Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) IT2023-60 SIP2023-93 RCS2023-235 |
High-altitude platform stations (HAPSs) have attracted increasing attention for their potential to extend coverage in mo... [more] | IT2023-60 SIP2023-93 RCS2023-235 pp.163-168 |
| NS, RCS (Joint) |
2023-12-15 15:40 |
Fukuoka | Kyushu Institute of Technology Tobata campus, and Online (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
Optimization of Base Station Coordinated Virtualized Cell MU-MIMO Canceller according to the Accuracy of Channel Estimation Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2023-204 |
In mobile communication systems such as 5G, ultra-high-speed data transmission anywhere within a cell is expected. In ce... [more] | RCS2023-204 pp.141-146 |
| RCS | 2023-10-20 15:15 |
Kagawa | Kagawa University (Saiwai-cho Campus), and online (Kagawa, Online) (Primary: On-site, Secondary: Online) |
Application of Joint Transmit-Receive Diversity to A Cellular Distributed MU-MIMO System Ryo Takahashi (PSNRD), Hidenori Matsuo (Panasonic Holdings), Fumiyuki Adachi (Tohoku Univ.) RCS2023-148 |
Cellular distributed multiuser MIMO (MU-MIMO) is a cellular system in which a wide communication service area is divided... [more] | RCS2023-148 pp.90-95 |
| AP | 2023-08-31 13:25 |
Tokyo | KOZO KEIKAKU ENGINEERING Inc. (Tokyo, Online) (Primary: On-site, Secondary: Online) |
2-layer Joint Interference Coordination for A Cellular System with Cluster-wise Distributed MU-MIMO Chang Ge, Sijie Xia, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.) AP2023-70 |
In a cellular system with distributed MU-MIMO, virtual small cells (called the user-clusters) are formed to reduce the h... [more] | AP2023-70 pp.21-24 |
| RCS, SAT (Joint) |
2023-09-01 09:50 |
Nagano | Naganoken Nokyo Building, and online (Nagano, Online) (Primary: On-site, Secondary: Online) |
Virtual Cell MU-MIMO Canceller Coordinating Base Stations in TDD Transmission
-- Eigenmode transmission without feedback of transmit and receive weights -- Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Tokyo Tech./SoftBank) RCS2023-118 |
In mobile communication systems such as 5G, ultra-high-speed data transmission is expected anywhere within a cell. In a ... [more] | RCS2023-118 pp.85-89 |
| SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-13 14:15 |
Osaka | Osaka University Nakanoshima Center + Online (Osaka, Online) (Primary: On-site, Secondary: Online) |
A configuration for overloaded MU-MIMO systems Kazuki Miyata, Satoshi Denno, Yafei Hou (Okayama Univ.) RCS2023-94 |
In this report, we consider overload communication in MU-MIMO systems in order to further increase the capacity of downl... [more] | RCS2023-94 pp.76-81 |
| RCS | 2023-06-15 17:05 |
Hokkaido | Hokkaido University, and online (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Performance Evaluation of Enhanced DL MU-MIMO for 5G-Advanced Takahisa Fukui, Ryota Morimoto, Kazunari Yokomakura (Sharp) RCS2023-62 |
This paper investigates transmission performances of multi-user multiple input multiple output (MU-MIMO) when the number... [more] | RCS2023-62 pp.200-205 |
| RCS | 2023-04-13 10:00 |
Shimane | Matsue New Urban Hotel, and online (Shimane, Online) (Primary: On-site, Secondary: Online) |
A Study on Optimal Configuration of Massive Antenna for MU-MIMO Base Station Considering 3D Spatial Radio Arrival Angle Characteristics Kohei Mitsumoto, Ryohei Maeda, Hikari Tsuhama, Teruya Fujii (Tokyo Tech) RCS2023-1 |
In the 5th and 6th generation mobile communication systems, beamforming with massive antennas consisting of dozens to hu... [more] | RCS2023-1 pp.1-6 |
| RCS | 2023-04-13 10:25 |
Shimane | Matsue New Urban Hotel, and online (Shimane, Online) (Primary: On-site, Secondary: Online) |
Null Sweeping for Reduction of Residual Interference between HAPS and Terrestrial Systems Tsutomu Ishikawa, Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank Corp.) RCS2023-2 |
A high-altitude platform station (HAPS) is a promising technology which realizes the coverage extension in the 6G wirele... [more] | RCS2023-2 pp.7-12 |
| RCS, SR, SRW (Joint) |
2023-03-01 13:25 |
Tokyo | Tokyo Institute of Technology, and Online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Interference Coordination in A Cellular Distributed MU-MIMO System
-- Intra-cell Interference Coordination -- Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.) RCS2022-256 |
Cellular distributed multiuser MIMO (MU-MIMO) is a cellular system in which a wide communication service area is divided... [more] | RCS2022-256 pp.54-59 |
| RCS, SR, SRW (Joint) |
2023-03-01 13:50 |
Tokyo | Tokyo Institute of Technology, and Online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Interference Coordination in A Cellular Distributed MU-MIMO System
-- Integrated Intra-cell/Inter-cell Interference Coordination -- Hidenori Matsuo, Ryo Takahashi, Fumiyuki Adachi (Tohoku Univ.) RCS2022-257 |
A cellular distributed multi-user MIMO (MU-MIMO) divides a wide communication service area into multiple base station ce... [more] | RCS2022-257 pp.60-65 |
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