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Paper Abstract and Keywords
Presentation 2023-04-13 11:30
Neural Network based Dynamic Area Optimization Algorithm for HAPS Mobile Communication Systems
Wataru Takabatake, Yohei Shibata, Kenji Hoshino, Atsushi Nagate (SB) RCS2023-4
Abstract (in Japanese) (See Japanese page) 
(in English) HAPS(High-Altitude Platform Station) attracts attention as a new communication platform which provides wide area communication services directly to smartphones on the ground from the stratosphere. We have developed a dynamic area optimization technique that uses Genetic Algorithm(GA) to optimize cell configuration, such as beam direction and width, to maximize communication capacity in response to changes in user distribution when the HAPS service area consists of multiple cells. However, GA incurs computational cost when searching for optimal values each time the user distribution changes, which means that it cannot immediately respond to sudden changes caused by large-scale disasters or events. In this paper, we propose a dynamic area optimization method that uses Neural Network which pre-learns GA optimization results as training data and can immediately respond to unknown distributions. Simulation results show that the objective function CDF by beams the proposed method predicts are nearly equivalent to GA for population data extracted from Japan.
Keyword (in Japanese) (See Japanese page) 
(in English) HAPS / Cell Configuration / Optimization / User Distribution / GA / Neural Network / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 3, RCS2023-4, pp. 19-24, April 2023.
Paper # RCS2023-4 
Date of Issue 2023-04-06 (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 RCS2023-4

Conference Information
Committee RCS  
Conference Date 2023-04-13 - 2023-04-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Matsue New Urban Hotel, and online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2023-04-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Neural Network based Dynamic Area Optimization Algorithm for HAPS Mobile Communication Systems 
Sub Title (in English)  
Keyword(1) HAPS  
Keyword(2) Cell Configuration  
Keyword(3) Optimization  
Keyword(4) User Distribution  
Keyword(5) GA  
Keyword(6) Neural Network  
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Keyword(8)  
1st Author's Name Wataru Takabatake  
1st Author's Affiliation SoftBank (SB)
2nd Author's Name Yohei Shibata  
2nd Author's Affiliation SoftBank (SB)
3rd Author's Name Kenji Hoshino  
3rd Author's Affiliation SoftBank (SB)
4th Author's Name Atsushi Nagate  
4th Author's Affiliation SoftBank (SB)
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Speaker Author-1 
Date Time 2023-04-13 11:30:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2023-4 
Volume (vol) vol.123 
Number (no) no.3 
Page pp.19-24 
#Pages 6 
Date of Issue 2023-04-06 (RCS) 

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