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| Presentation | 2018-11-22 15:30 Low Complexity User Selection Algorithm for High SHF Band Multi-User Massive MIMO Using Hybrid Beamforming Nobuhide Nonaka, Kazushi Muraoka, Satosi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO)  RCS2018-214 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The 5th Generation (5G) radio access network will introduce Massive MIMO technology at higher frequency bands with wider bandwidth and Massive MIMO technology for realizing super high bit rate. As a practical method of multi-user Massive MIMO at such higher frequency bands, joint processing of fixed analog beamforming and channel state information-based precoding (FBCP) has been studied. In the multi-user Massive MIMO, a user selection algorithm for spatial multiplexing is important to avoid inter-user interference. On the other hand, computational complexity of the user selection algorithm becomes prohibitively high when the number of antenna elements increases. To lower the complexity, 2-step user selection algorithm based on chordal distance user selection (CDUS) has been proposed. However, the user selection algorithm could not take into account user fairness. Therefore, this report proposes user selection algorithm to achieve both the high system capacity and user fairness. The proposed method firstly selects users based on proportional fairness metric using the latest throughput when the users were selected in the scheduling. Then CDUS is applied to the firstly selected users as the second step of user selection. Computer simulations for multi-user Massive MIMO verify that the proposed algorithm can achieve user fairness and high throughput performance. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 5G / high SHF band / multi-user Massive MIMO / hybrid beamforming / user selection / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 311, RCS2018-214, pp. 205-210, Nov. 2018. | |
| Paper # | RCS2018-214 | |
| Date of Issue | 2018-11-13 (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 | RCS2018-214 |
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| Conference Information | |
| Committee | RCS AP |
| Conference Date | 2018-11-20 - 2018-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2018-11-RCS-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Complexity User Selection Algorithm for High SHF Band Multi-User Massive MIMO Using Hybrid Beamforming |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | high SHF band |
| Keyword(3) | multi-user Massive MIMO |
| Keyword(4) | hybrid beamforming |
| Keyword(5) | user selection |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Nobuhide Nonaka |
| 1st Author's Affiliation | 5G Laboratories, NTT DOCOMO, INC. (NTT DOCOMO) |
| 2nd Author's Name | Kazushi Muraoka |
| 2nd Author's Affiliation | 5G Laboratories, NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Satosi Suyama |
| 3rd Author's Affiliation | 5G Laboratories, NTT DOCOMO, INC. (NTT DOCOMO) |
| 4th Author's Name | Jun Mashino |
| 4th Author's Affiliation | 5G Laboratories, NTT DOCOMO, INC. (NTT DOCOMO) |
| 5th Author's Name | Yukihiko Okumura |
| 5th Author's Affiliation | 5G Laboratories, NTT DOCOMO, INC. (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2018-11-22 15:30:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2018-214 |
| Volume (vol) | vol.118 |
| Number (no) | no.311 |
| Page | pp.205-210 |
| #Pages | 6 |
| Date of Issue | 2018-11-13 (RCS) |
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