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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CQ, CBE (Joint) |
2025-01-31 10:05 |
Fukuoka | (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Research to improve communication quality for User-Centric RAN Using Cell-Free Massive MIMO Toshiyuki Shintaku, Takahide Murakami, Akio Ikami, Yu Tsukamoto, Hiroyuki Shinbo, Yoshiaki Amano (KDDI Research) |
(To be available after the conference date) [more] | |
| SR | 2025-01-31 17:05 |
Kagawa | Sunport Takamatsu (Kagawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
A Study on Improvement of Wireless Quality by Prediction of Phase Difference Variation between APs in Cell-Free Massive MIMO Takahide Murakami, Yu Tsukamoto, Akio Ikami, Hiroyuki Shinbo, Yoshiaki Amano (KDDI Research) |
(To be available after the conference date) [more] | |
| RCS, SIP, IT | 2025-01-29 17:25 |
Yamaguchi | Kaikyou-messe (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Throughput Evaluation of Overhead Reduction by UE-initiated Beam Management in Millimeter Wave Band 5G NR Shunsuke Kamiwatari, Shuto Fukue, Noboru Osawa, Masaaki Ito, Takeo Ohseki, Issei Kanno, Hiroyuki Shinbo (KDDI Research) |
(To be available after the conference date) [more] | |
| RISING (3rd) |
2024-11-11 13:20 |
Hokkaido | Kaderu 2・7 (Sapporo) (Hokkaido) | [Poster Presentation]
Activities of integrated management with AI in User-centric RAN Hiroyuki Shinbo, Yu Tsukamoto, Akio Ikami, Yoshiaki Amano (KDDI Research) |
[more] | |
| RISING (3rd) |
2024-11-12 09:15 |
Hokkaido | Kaderu 2・7 (Sapporo) (Hokkaido) | [Poster Presentation]
AI/ML-Based Multi-TRP/Beam Selection Method in Mixed Use Cases Masaaki Ito, Issei Kanno, Hiroyuki Shinbo (KDDI Research) |
In Beyond 5G/6G mobile communication systems, the utilization of the mmWave (millimeter-wave) band, which offers wide ba... [more] | |
| AP, SANE, SAT (Joint) |
2024-07-26 14:20 |
Hokkaido | Frontier Research in Applied Sciences Building, Hokkaido University (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Tutorial Lecture]
Investigation of reflection parameters of lunar surface Kazunori Takeuchi, Akira Yamaguchi, Akira Akasaka (KDDI Research, Inc.), Ro Hou (KDDI), Hiroyuki Shinbo (KDDI Research, Inc.)  AP2024-44 |
To estimate radio communication quality on lunar surface, the surface reflection parameters of the lunar are required. F... [more] | AP2024-44 pp.123-128 |
| RCC, RCS, SeMI, NS, SR, RISING (Joint) |
2024-07-17 11:00 |
Hokkaido | Hokkaido Citizens Activities Promotion Center (Hokkaido, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Experimental Analysis of Temporal Characteristics of Phase Difference among APs for Cell-Free Massive MIMO in User-Centric RAN Takahide Murakami, Yu Tsukamoto, Akio Ikami, Hiroyuki Shinbo, Yoshiaki Amano (KDDI Research) SR2024-26 |
Cell-Free massive MIMO (CF-mMIMO) is gaining attention as a technology that can ensure wireless quality without dependin... [more] | SR2024-26 pp.13-15 |
| RCS | 2024-06-21 14:50 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
A Study on Characteristic Analysis of Blockage in Millimeter Wave V2X Communication Noboru Osawa, Masaaki Ito, Shunsuke Kamiwatari, Shuto Fukue, Issei Kanno, Hiroyuki Shinbo (KDDI research) RCS2024-83 |
In vehicle-to-everything (V2X) communications used in use cases such as automated driving and remote monitoring, the amo... [more] | RCS2024-83 pp.323-328 |
| RCS | 2023-10-19 14:05 |
Kagawa | Kagawa University (Saiwai-cho Campus), and online (Kagawa, Online) (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Research for Wide-Area Expansion of User-Centric RAN Using Cell-Free Massive MIMO Takahide Murakami, Yu Tsukamoto, Reo Kohinata, Naoki Aihara, Akio Ikami, Hiroyuki Shinbo, Yoshiaki Amano (KDDI Research) RCS2023-133 |
Cell-Free massive MIMO (cell-free) is attracting attention as a technology that can ensure wireless quality regardless o... [more] | RCS2023-133 p.26 |
| AP | 2023-04-14 14:20 |
Osaka | Osaka Univ. (Osaka, Online) (Primary: On-site, Secondary: Online) |
Investigation of reflection parameters of lunar surface. Kazunori Takeuchi, Akira Yamaguchi, Akira Akasaka, Yoshio Takeuchi, Hiroyuki Shinbo (KDDI Research, Inc.) AP2023-5 |
To estimate radio communication quality on lunar surface, the surface reflection parameters of the lunar are required. F... [more] | AP2023-5 pp.22-27 |
| RCS, SR, SRW (Joint) |
2023-03-03 09:00 |
Tokyo | Tokyo Institute of Technology, and Online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
Large-scale Simulation for Integrated Demonstration of Management Technology in Advanced 5G Network Haruhisa Hirayama, Megumi Shibuya, Akira Yamaguchi, Yu Tsukamoto, Takahide Murakami, Hiroyuki Shinbo (KDDI Research) RCS2022-281 |
In the advanced 5G era around 2025, mobile traffic with various required qualities such as high capacity, ultra-low late... [more] | RCS2022-281 pp.185-189 |
| RCS, SR, SRW (Joint) |
2022-03-02 14:30 |
Online | Online (Online) | Performance Evaluation of User-Centric AP Cluster Formulation Scheme with User Mobility toward Beyond 5G Naoki Aihara, Akio Ikami, Takahide Murakami, Yu Tsukamoto, Hiroyuki Shinbo (KDDI Research) RCS2021-267 |
[more] | RCS2021-267 pp.85-89 |
| RCS, SR, SRW (Joint) |
2022-03-02 14:55 |
Online | Online (Online) | A fundamental experiment of AP clustering for CF-mMIMO in user-centric RAN Yu Tsukamoto, Issei Kannno, Takahide Murakami, Hiroyuki Shinbo (KDDI Research) RCS2021-268 |
[more] | RCS2021-268 pp.90-95 |
| AP | 2022-02-17 09:50 |
Online | Online (Online) | An experimental investigation of the reflection characteristics of lunar surface Feng Lu, Kazunori Takeuchi, Akira Yamaguchi, Hiroyuki Shinbo (KDDI Research) AP2021-159 |
Providing communication areas on the lunar surface for exploration of the lunar surface etc. in the 2030s has been consi... [more] | AP2021-159 pp.7-10 |
| SR | 2022-01-24 10:50 |
Online | Online (Online) | [Invited Talk]
Research & Development of Robust CoMP for Millimeter Communications with Random Blockages Koji Ishibashi, Sota Uchimura (UEC), Tetsuya Iye, Yoshimi Fujii (KKE), Takahide Murakami, Hiroyuki Shinbo (KDDI Research, Inc.) SR2021-60 |
Next-generation mobile communications (Beyond 5G/6G) have to meet diverse demands of users such as ultra-high speed, low... [more] | SR2021-60 p.11 |
| RCS, NS (Joint) |
2021-12-17 11:00 |
Nara | Nara-ken Bunka Kaikan and Online (Nara, Online) (Primary: On-site, Secondary: Online) |
Performance Analysis on distributed CPU Cooperation Schemes of CF-mMIMO on User-Centric RAN Towards Beyond 5G Naoki Aihara, Akio Ikami, Takahide Murakami, Yu Tsukamoto, Hiroyuki Shinbo (KDDI Research) RCS2021-188 |
[more] | RCS2021-188 pp.69-74 |
| RCS | 2021-10-21 10:00 |
Online | Online (Online) | Performance Evaluation on CPU Function Placement using Virtualized RAN to Cell Free-massive MIMO Naoki Aihara, Akio Ikami, Takahide Murakami, Yu Tsukamoto, Hiroyuki Shinbo (KDDI Research) RCS2021-118 |
[more] | RCS2021-118 pp.1-6 |
| RCS | 2021-10-22 10:50 |
Online | Online (Online) | Experimental Study on Tradeoff between Blockage Prediction and Performance of Millimeter-wave Communications with Coordinated Multipoint Transmission Sota Uchimura (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC), Takahide Murakami, Hiroyuki Shinbo (KDDI Research, Inc.) RCS2021-133 |
Various blockage prediction methods have been proposed to overcome the vulnerability of millimeter-wave (mmWave) signals... [more] | RCS2021-133 pp.76-81 |
| SAT | 2021-10-07 14:20 |
Online | Online (Online) | PROPOSAL FOR A USER-CENTRIC RAN ARCHITECTURE TOWARDS BEYOND 5G Kosuke Yamazaki, Takeo Ohseki, Yoshiaki Amano, Takahide Murakami, Hiroyuki Shinbo, Yoji Kishi (KDDI Research, Inc.) SAT2021-43 |
In this paper, we present a novel RAN architecture for Beyond 5G called “user-centric (UC) RAN architecture,” which prov... [more] | SAT2021-43 pp.4-10 |
| RCS, SR, SRW (Joint) |
2021-03-04 10:55 |
Online | Online (Online) | A Study of Feedback Control for Suppression of Communication Quality Deterioration in Adaptive RAN Haruhisa Hirayama, Yu Tsukamoto, Shinobu Nanba, Hiroyuki Shinbo (KDDI Research) RCS2020-230 |
In order to meet the requirements of diverse services in the advanced 5G era, we have proposed Adaptive RAN, in which th... [more] | RCS2020-230 pp.141-146 |
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