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| Presentation | 2023-09-01 09:00 K-Means-Aided Particle Swarm Optimization for Antenna Control in Multi-Cell HAPS System Wei Dai, Siyuan Yang, Mondher Bouazizi, Tomoaki Ohtsuki (Keio.)  RCS2023-116 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | High Altitude Platform Stations (HAPS) are considered a solution for providing ultrawide coverage areas and disaster-resilient communication networks. Since one HAPS covers a wide area and the area changes while the HAPS is flying, a HAPS should prevent UEs from suffering network outages and distribute throughput to UEs as evenly as possible. Therefore, instead of applying fixed cell configurations, HAPS uses beamforming techniques to dynamically control the beams to configure cells according to the UE distribution. To achieve this, an optimization-based method is proposed to maximize UE throughput according to an objective function. However, the computational complexity is too high. Some AI-based methods are also proposed which can quickly control beams, but it is not guaranteed that low throughput UEs are exactly minimized. In this paper, we propose a particle swarm optimization (PSO) method to find the antenna parameters that can configure cells to minimize low throughput UEs. This method uses K-means to help PSO redefine the search range for each antenna parameter, thereby increasing the ability to find the optimal solution. We run simulations based on realistic UE distributions in some cities. The results show that our proposed algorithm can reduce more low throughput UEs with low computational complexity. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | HAPS / cell configuration / K-means / particle swarm optimization / beamforming / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 172, RCS2023-116, pp. 73-78, Aug. 2023. | |
| Paper # | RCS2023-116 | |
| Date of Issue | 2023-08-24 (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 | RCS2023-116 |
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| Conference Information | |
| Committee | RCS SAT |
| Conference Date | 2023-08-31 - 2023-09-01 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Naganoken Nokyo Building, and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2023-08-RCS-SAT |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | K-Means-Aided Particle Swarm Optimization for Antenna Control in Multi-Cell HAPS System |
| Sub Title (in English) | |
| Keyword(1) | HAPS |
| Keyword(2) | cell configuration |
| Keyword(3) | K-means |
| Keyword(4) | particle swarm optimization |
| Keyword(5) | beamforming |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Wei Dai |
| 1st Author's Affiliation | Keio University (Keio.) |
| 2nd Author's Name | Siyuan Yang |
| 2nd Author's Affiliation | Keio University (Keio.) |
| 3rd Author's Name | Mondher Bouazizi |
| 3rd Author's Affiliation | Keio University (Keio.) |
| 4th Author's Name | Tomoaki Ohtsuki |
| 4th Author's Affiliation | Keio University (Keio.) |
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| Speaker | Author-1 |
| Date Time | 2023-09-01 09:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2023-116 |
| Volume (vol) | vol.123 |
| Number (no) | no.172 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2023-08-24 (RCS) |
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