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| Presentation | 2022-05-26 09:55 Incorporation of MU-MIMO Technology into User-centric Cell-Free mMIMO System Sijie Xia, Chang Ge, Ryo Takahashi, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.)  RCS2022-14 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, cell-free massive multiple-input-multiple-output (CF-mMIMO) system has been attracting a great attention. CF-mMIMO system is designed to accommodate a relatively small number of users by using a large number of antennas. From the practical perspective of computational complexity and fronthaul capacity, a user-centric antenna clustering approach is taken, i.e., each user is served by an antenna cluster which is a set of antennas with high channel gain. However, as the number of users increases, the interference tends to degrade the transmission performance. To improve the transmission performance under a densely populated user environment, we propose to incorporate the multi-user MIMO (MU-MIMO) technology into user-centric CF-mMIMO, which is called clusters-centric CF-mMIMO in this paper. In cluster-centric CF-mMIMO, user-clusters are first formed and a set of antennas is associated with each user cluster for performing MU-MIMO communication in parallel. We will show by computer simulation of user capacity that the proposed cluster-centric CF-mMIMO outperforms the user-centric CF-mMIMO under a densely populated user environment. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Cell free massive MIMO / user clustering / signal processing / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 49, RCS2022-14, pp. 7-12, May 2022. | |
| Paper # | RCS2022-14 | |
| Date of Issue | 2022-05-19 (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 | RCS2022-14 |
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| Conference Information | |
| Committee | IN RCS NV |
| Conference Date | 2022-05-26 - 2022-05-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Keio University (Hiyoshi Campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Ad-Hoc/Sensor Networks/MANET, Mobile Networks, M2M/IoT Communications, Wi-Fi, IEEE802.15(ZigBee) and others |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2022-05-IN-RCS-NV |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Incorporation of MU-MIMO Technology into User-centric Cell-Free mMIMO System |
| Sub Title (in English) | |
| Keyword(1) | Cell free massive MIMO |
| Keyword(2) | user clustering |
| Keyword(3) | signal processing |
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| 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.) |
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| Speaker | Author-1 |
| Date Time | 2022-05-26 09:55:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2022-14 |
| Volume (vol) | vol.122 |
| Number (no) | no.49 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2022-05-19 (RCS) |
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