| Presentation | 2023-03-01 Interference Coordination in A Cellular Distributed MU-MIMO System Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Cellular distributed multiuser MIMO (MU-MIMO) is a cellular system in which a wide communication service area is divided into multiple base station cells based on the location information of densely deployed distributed antennas, multiple user clusters are formed in each cell based on the location information of users, and then cluster-wise distributed MU-MIMO is performed in parallel using the same radio resources. The cellular distributed MU-MIMO system performs multiuser spatial multiplex with low computational complexity with the help of the parallel cluster-wise distributed MU-MIMO while ensuring the system scalability by dividing the wide communication service area into multiple cells. Therefore, it is expected to be able to construct a practical ultra-dense radio access network (RAN). However, it requires an interference countermeasure to mitigate the intra-cell interference and the inter-cell interference. Recently, we have proposed a decentralized integrated interference coordination (IC) framework that effectively mitigates both the intra-cell interference and the inter-cell interference. The intra-cell IC in this framework employs cluster layering, which separates neighboring clusters into different layers based on the interference offset distance and gives the communication opportunity to each layer in turn, and is called an interference avoidance intra-cell IC. More recently, we have proposed an interference suppression intra-cell IC, in which the inter-cluster interference suppression capability is incorporated into the minimum mean square error (MMSE) pre/post-coding. In this paper, we evaluate the uplink user capacities achievable by both the interference avoidance and the interference suppression intra-cell ICs and compare the two intra-cell ICs in terms of the uplink user capacity and the computational complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | cellular distributed MU-MIMO / user cluster / interference coordination / cluster layering / MMSE / computational complexity |
| Paper # | RCS2022-256 |
| Date of Issue | 2023-02-22 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
|---|---|
| Conference Date | 2023/3/1(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT) / Keiichi Mizutani(KUT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Mai Ohta(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) / Maki Arai(Nihon Univ.) / Yuichi Masuda(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Interference Coordination in A Cellular Distributed MU-MIMO System |
| Sub Title (in English) | Intra-cell Interference Coordination |
| Keyword(1) | cellular distributed MU-MIMO |
| Keyword(2) | user cluster |
| Keyword(3) | interference coordination |
| Keyword(4) | cluster layering |
| Keyword(5) | MMSE |
| Keyword(6) | computational complexity |
| 1st Author's Name | Ryo Takahashi |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Hidenori Matsuo |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Fumiyuki Adachi |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2023-03-01 |
| Paper # | RCS2022-256 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-399 |
| Page | pp.pp.54-59(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-02-22 (RCS) |