| Presentation | 2022-10-28 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, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Cell-free massive multi-input multi-output (CF-mMIMO), which is recently under extensive study, is considered to be an effective way to provide high-quality services to users by deploying a large number of antennas over a wide area in Beyond 5G systems. However, due to the extremely high computational complexity required for mMIMO, system scalability becomes an important issue for its practical implementation. In our previous study, we proposed a scalable user-cluster-centric (UCC) CF-mMIMO scheme, which employs interference suppression zero-forcing (IS-ZF)-based multi-user MIMO (MU-MIMO) to effectively mitigate the inter-cluster interference. How to identify and select dominant interfering users who give a strong impact on the system capacity is an important issue. In this paper, we will investigate the impact of the number of interfering users considered for the IS-ZF-based MU-MIMO on the system capacity and propose an effective selection method of dominant interfering users. We will show by the computer simulation that the proposed interfering user selection method can approximately reach the upper bound of capacity which is achieved by IS-ZF-based MU-MIMO considering all interfering users. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cell-free massive MIMOZFinterference suppressionuser clusteringbeyond 5G systems |
| Paper # | RCS2022-144 |
| Date of Issue | 2022-10-20 (RCS) |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2022/10/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ehime University, and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Interference Suppression ZF-based MU-MIMO for Cluster-Centric Cell-Free Massive MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | Cell-free massive MIMOZFinterference suppressionuser clusteringbeyond 5G systems |
| 1st Author's Name | Sijie Xia |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Chang Ge |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Ryo Takahashi |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Qiang Chen |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 5th Author's Name | Fumiyuki Adachi |
| 5th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2022-10-28 |
| Paper # | RCS2022-144 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-235 |
| Page | pp.pp.77-82(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-10-20 (RCS) |