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| Presentation | 2023-03-01 13:25 Interference Coordination in A Cellular Distributed MU-MIMO System -- Intra-cell Interference Coordination -- Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.)  RCS2022-256 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | cellular distributed MU-MIMO / user cluster / interference coordination / cluster layering / MMSE / computational complexity / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 399, RCS2022-256, pp. 54-59, March 2023. | |
| Paper # | RCS2022-256 | |
| Date of Issue | 2023-02-22 (RCS) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | RCS2022-256 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2023-03-01 - 2023-03-03 |
| 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 |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2023-03-RCS-SR-SRW |
| Language | Japanese |
| 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 |
| Keyword(7) | |
| Keyword(8) | |
| 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.) |
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| Speaker | Author-1 |
| Date Time | 2023-03-01 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2022-256 |
| Volume (vol) | vol.122 |
| Number (no) | no.399 |
| Page | pp.54-59 |
| #Pages | 6 |
| Date of Issue | 2023-02-22 (RCS) |
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