Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2025-03-05 17:45 |
Kyoto |
Kyoto Institute of Technology (Kyoto, Online) (Primary: On-site, Secondary: Online) |
Exploration of Optimal Pilot Pattern Using Black-box Optimization with Quantum Computing Hiroaki Ominato, Takahiro Ohyama, Ryo Takahashi (PSNRD), Fumiyuki Adachi (Tohoku Univ.) |
(To be available after the conference date) [more] |
|
MIKA (3rd) |
2024-10-29 14:35 |
Okayama |
Okayama Convention Center (Okayama) |
[Poster Presentation]
A Study on Interference Suppression and Pilot Assignment for User-cluster-centric Cell-Free Massive MIMO Systems Sijie Xia, Qiang Chen (Tohoku Univ.), Suguru Kameda (Hiroshima Univ.), Fumiyuki Adachi (Tohoku Univ.) |
Cell-free massive multi-input multi-output (CF-mMIMO), which has recently been under extensive study, is considered an e... [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] |
|
SIP, IT, RCS |
2024-01-19 09:55 |
Miyagi |
(Miyagi, Online) (Primary: On-site, Secondary: Online) |
A Study on Interference-Aware Antenna Assignment Using Grover Adaptive Search in Distributed Antenna Systems Keishi Hanakago, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) IT2023-62 SIP2023-95 RCS2023-237 |
[more] |
IT2023-62 SIP2023-95 RCS2023-237 pp.175-180 |
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 |
SeMI, RCS, RCC, NS, SR (Joint) |
2023-07-12 10:25 |
Osaka |
Osaka University Nakanoshima Center + Online (Osaka, Online) (Primary: On-site, Secondary: Online) |
A Study on MLD Considering Inter-cluster Interference for Distributed Antenna Systems Using Quantum Computing Keishi Hanakago, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) RCS2023-80 |
[more] |
RCS2023-80 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 |
RCS, SR, SRW (Joint) |
2023-03-01 14:15 |
Tokyo |
Tokyo Institute of Technology, and Online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
A Joint Interference Coordination based on Graph Coloring Algorithm and Deep Reinforcement Learning for Cluster-wise Distributed MU-MIMO Chang Ge, Sijie Xia, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.) RCS2022-258 |
In our previous studies, we proposed a 2-layer IC framework based on O-RAN architecture for a cellular system with clust... [more] |
RCS2022-258 pp.66-71 |
RCS, NS (Joint) |
2022-12-15 11:40 |
Aichi |
Nagoya Institute of Technology, and Online (Aichi, Online) (Primary: On-site, Secondary: Online) |
Evaluation of MMSE Postcoding Schemes for Reducing Inter-cluster-interference in A Cellular Distributed MU-MIMO System Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.) RCS2022-189 |
Cellular distributed multi-user MIMO (MU-MIMO) is a system in which a large number of distributed antennas deployed over... [more] |
RCS2022-189 pp.25-30 |
RCS, NS (Joint) |
2022-12-16 09:30 |
Aichi |
Nagoya Institute of Technology, and Online (Aichi, Online) (Primary: On-site, Secondary: Online) |
Convergence analysis of Interference-Aware Channel Segregation based Multiple Channel Assignment Katsuhiro Temma, Kenichi Takizawa (NICT), Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.) RCS2022-198 |
Our recently proposed interference-aware channel segregation based dynamic channel assignment (IACS-DCA) forms a channel... [more] |
RCS2022-198 pp.69-74 |
RCS, AP, UWT (Joint) |
2022-11-16 09:30 |
Fukuoka |
Kyushu University, and Online (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
A behavior of user-driven multiuser joint transmit-receive diversity in an asymmetric MIMO fading channel Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2022-163 |
In this paper, we study user-driven multi-user JTRD. In user-driven multi-user JTRD, each user terminal (UE) determines ... [more] |
RCS2022-163 pp.49-54 |
RCS, AP, UWT (Joint) |
2022-11-17 09:55 |
Fukuoka |
Kyushu University, and Online (Fukuoka, Online) (Primary: On-site, Secondary: Online) |
A Study of Optimal Perturbation Vector Search Using Quantum Computing in Vector Perturbation Introducing Symmetry when Using MMSE Norms Keishi Hanakago, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) RCS2022-175 |
VP (Vector Perturbation) is a nonlinear precoding for MU-MIMO (Multi-User Multi-Input Multi-Output). It is known that fu... [more] |
RCS2022-175 pp.118-123 |
RCS |
2022-10-28 10:15 |
Ehime |
Ehime University, and online (Ehime, Online) (Primary: On-site, Secondary: Online) |
A Study on Interference Suppression ZF-based MU-MIMO for Cluster-Centric Cell-Free Massive MIMO Systems Sijie Xia, Chang Ge, Ryo Takahashi, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.) RCS2022-144 |
Cell-free massive multi-input multi-output (CF-mMIMO), which is recently under extensive study, is considered to be an e... [more] |
RCS2022-144 pp.77-82 |
SAT, RCS (Joint) |
2022-08-25 11:15 |
Hokkaido |
(Hokkaido, Online) (Primary: On-site, Secondary: Online) |
Channel Segregation and Multi-Subband Assignment for Inter-Cell Interference Coordination in Ultra-dense RAN Hidenori Matsuo, Ryo Takahashi, Fumiyuki Adachi (Tohoku Univ.) RCS2022-100 |
Ultra-high-density radio access network (RAN) with many distributed antennas in a base station area (cell) are considere... [more] |
RCS2022-100 pp.18-23 |
SAT, RCS (Joint) |
2022-08-25 11:40 |
Hokkaido |
(Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A Study on Computational Complexity Reduction of Pre/Postcoding in User-Cluster-Centric CF-mMIMO Ryo Takahashi, Hidenori Matsuo, Sijie Xia, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.) RCS2022-101 |
Cell-Free massive MIMO (CF-mMIMO), which cooperatively utilizes a large number of antennas deployed over a wide communic... [more] |
RCS2022-101 pp.24-29 |
SAT, RCS (Joint) |
2022-08-25 12:05 |
Hokkaido |
(Hokkaido, Online) (Primary: On-site, Secondary: Online) |
A study on user-driven suboptimal joint transmit-receive diversity Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2022-102 |
In user-driven suboptimal joint transmit-receive diversity (JTRD), firstly the user equipment (UE) determines its divers... [more] |
RCS2022-102 pp.30-35 |
SRW |
2022-08-22 13:50 |
Online |
Online (Online) |
[Invited Talk]
Toward Ultra-dense Mobile Communication Systems Fumiyuki Adachi (Tohoku Univ.) SRW2022-14 |
Since the inauguration of the 3rd generation (3G) mobile communication services, the mobile data traffic has been rapidl... [more] |
SRW2022-14 pp.27-32 |
NS, SR, RCS, SeMI, RCC (Joint) |
2022-07-14 11:20 |
Ishikawa |
The Kanazawa Theatre + Online (Ishikawa, Online) (Primary: On-site, Secondary: Online) |
A Study of Quantum Computing-based Cluster-Layering Method in Distributed Antenna Networks Keishi Hanakago, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) RCS2022-82 |
In distributed antenna networks, where a large number of antennas are deployed in a communication service area, distribu... [more] |
RCS2022-82 pp.66-71 |