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| Presentation | 2020-06-25 11:15 A Study on Loose Beam Forming Using Differential Evolution Tatsuki Otsuka, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.)  RCS2020-34 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In multi-user massive MIMO systems, it is concerned that the computational load to form a weight increases drastically as there are often more than 100 antenna elements considered at base stations. Therefore, loose beamforming to select only useful antenna elements has been proposed. In this paper, we propose a new evaluation function to obtain quasi-optimal solutions for the loose beamforming using machine learning. We used binary differential evolution to actually generate the quasi-optimal solutions learned through the proposed evaluation function and the one used in the previous studies, where we compared their performances afterwards using the criteria including downlink sum capacity.As a result, it is shown that the proposed evaluation function performs better than the previous method in that it generates solutions that are less susceptible to interference and have better sum capacity. It is also implied that the problem of loose beamforming is splittable into mutually independent subproblems. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Massive MIMO / Loose beamforming / Antenna selection / Evaluation function / Binary Differential Evolution / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 74, RCS2020-34, pp. 67-72, June 2020. | |
| Paper # | RCS2020-34 | |
| Date of Issue | 2020-06-17 (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 | RCS2020-34 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2020-06-24 - 2020-06-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2020-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Loose Beam Forming Using Differential Evolution |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Loose beamforming |
| Keyword(3) | Antenna selection |
| Keyword(4) | Evaluation function |
| Keyword(5) | Binary Differential Evolution |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tatsuki Otsuka |
| 1st Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name | Toshihiko Nishimura |
| 2nd Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 3rd Author's Name | Takeo Ohgane |
| 3rd Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 4th Author's Name | Yasutaka Ogawa |
| 4th Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 5th Author's Name | Junichiro Hagiwara |
| 5th Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 6th Author's Name | Takanori Sato |
| 6th Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-06-25 11:15:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2020-34 |
| Volume (vol) | vol.120 |
| Number (no) | no.74 |
| Page | pp.67-72 |
| #Pages | 6 |
| Date of Issue | 2020-06-17 (RCS) |
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