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Paper Abstract and Keywords
Presentation 2026-05-14 10:10
Evaluation of a 38GHz-Band Backhaul System for High-Altitude Platform Stations (HAPS)
Tsuyoshi Nakasendo, Ryuji Muta, Akihiko Nishio, Hidenori Matsuo, Tomohiro Kimura, Takashi Miura, Takayuki Sotomura (Panasonic HD) SAT2026-2
Abstract (in Japanese) (See Japanese page) 
(in English) There is growing interest in stratospheric High Altitude Platform Stations (HAPS) as a resilient backhaul solution to complement the vulnerability of terrestrial communication infrastructure during natural disasters. This paper reports the development of a practical HAPS backhaul system with multi-gateway capability using 38 GHz-band full digital beamforming, along with a flight demonstration using a Cessna aircraft. The proposed system equips the HAPS airborne unit with a 5G base-station function and a 56-element full digital beamforming antenna, aiming to realize site diversity across multiple gateways. In the flight demonstration, the Cessna-mounted HAPS system was connected with two ground sites approximately 6 km apart, and it was confirmed that selective use of links to the two ground stations can improve communication quality and increase connection retention.
Keyword (in Japanese) (See Japanese page) 
(in English) 5GNR / NTN / High Altitude Platform Station / HAPS / site diversity / full digital beamformer / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 18, SAT2026-2, pp. 7-12, May 2026.
Paper # SAT2026-2 
Date of Issue 2026-05-07 (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 SAT2026-2

Conference Information
Committee CQ CS SAT  
Conference Date 2026-05-14 - 2026-05-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Kushiro Chamber of Commerce & Industry 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SAT 
Conference Code 2026-05-CQ-CS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of a 38GHz-Band Backhaul System for High-Altitude Platform Stations (HAPS) 
Sub Title (in English)  
Keyword(1) 5GNR  
Keyword(2) NTN  
Keyword(3) High Altitude Platform Station  
Keyword(4) HAPS  
Keyword(5) site diversity  
Keyword(6) full digital beamformer  
Keyword(7)  
Keyword(8)  
1st Author's Name Tsuyoshi Nakasendo  
1st Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
2nd Author's Name Ryuji Muta  
2nd Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
3rd Author's Name Akihiko Nishio  
3rd Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
4th Author's Name Hidenori Matsuo  
4th Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
5th Author's Name Tomohiro Kimura  
5th Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
6th Author's Name Takashi Miura  
6th Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
7th Author's Name Takayuki Sotomura  
7th Author's Affiliation Panasonic Holdings Corporation (Panasonic HD)
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Speaker Author-1 
Date Time 2026-05-14 10:10:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2026-2 
Volume (vol) vol.126 
Number (no) no.18 
Page pp.7-12 
#Pages 6 
Date of Issue 2026-05-07 (SAT) 

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