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Paper Abstract and Keywords
Presentation 2026-02-19 08:30
DQN-based Sequential Control of Bundle Transfer Order in Relay-assisted LEO Satellite Constellation Collaboration Systems
Ryohei Chiba, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Yohei Hasegawa, Masayuki Ariyoshi (NEC/Tohoku Univ.) SAT2025-62
Abstract (in Japanese) (See Japanese page) 
(in English) Using geostationary Earth orbit (GEO) satellites as relays to coordinate low Earth orbit (LEO) satellite constellations is expected to enable complementary coverage extension. In this scenario, the delay/disruption tolerant network is used as the protocol to achieve highly reliable communication between LEO satellites and the GEO relay satellite. However, when communicating with multiple constellations, relying on a single policy for bundle forwarding order control at the relay node leads to a lower bundle transfer ratio. In this paper, we propose a bundle transfer policy selection method using deep Q-network to improve the bundle transfer ratio. Simulation results demonstrated the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Low Earth Orbit Satellite Constellation / Geostationary Earth Orbit Satellite / Delay/Disruption Tolerant Networks / Deep Q-Network / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 359, SAT2025-62, pp. 1-6, Feb. 2026.
Paper # SAT2025-62 
Date of Issue 2026-02-12 (SAT) 
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 SAT2025-62

Conference Information
Committee SAT SANE  
Conference Date 2026-02-19 - 2026-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Eef-Jouhou-Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Application and General Issues 
Paper Information
Registration To SAT 
Conference Code 2026-02-SAT-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) DQN-based Sequential Control of Bundle Transfer Order in Relay-assisted LEO Satellite Constellation Collaboration Systems 
Sub Title (in English)  
Keyword(1) Low Earth Orbit Satellite Constellation  
Keyword(2) Geostationary Earth Orbit Satellite  
Keyword(3) Delay/Disruption Tolerant Networks  
Keyword(4) Deep Q-Network  
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1st Author's Name Ryohei Chiba  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Hiroaki Hashida  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Yuichi Kawamoto  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Nei Kato  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Yohei Hasegawa  
5th Author's Affiliation NEC Corporation/Tohoku University (NEC/Tohoku Univ.)
6th Author's Name Masayuki Ariyoshi  
6th Author's Affiliation NEC Corporation/Tohoku University (NEC/Tohoku Univ.)
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Speaker Author-1 
Date Time 2026-02-19 08:30:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # SAT2025-62 
Volume (vol) vol.125 
Number (no) no.359 
Page pp.1-6 
#Pages 6 
Date of Issue 2026-02-12 (SAT) 

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