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Paper Abstract and Keywords
Presentation 2026-07-23 13:20
Terrestrial Interference Canceller Having an Auxiliary Antenna with Elevational Directivity in NTN
Moe Tanaka, Takatoshi Sugiyama (Kogakuin Univ), Toru Takahashi, Hisaaki Sasaki (MCC) AP2026-59 SANE2026-47 SAT2026-26
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, non-terrestrial networks (NTNs), having attracted significant attention because, they can extend the service area of mobile communication networks three-dimensionally. However, since there are almost no new frequency bands available for NTNs, interference issues are expected in the future that they would share the same frequency bands among NTNs and terrestrial networks (TN). As one of the interference compensation techniques, high-power signal cancellers have studied in non-orthogonal multiple access (NOMA) in TN. However, it is very difficult for NOMA type cancellers to compensate unknown interferences or the interferences with small received signal power differences between the desired and the interference signals.
Therefore, assuming a GEO system as the desired NTN, a new interference canceller has been proposed that employs an auxiliary antenna to receive only the TN interference signal. It extracts the TN interference signal and generates the replica of the TN interference signal, and subtracts the replica from the received signals at NTN parabolic antenna.
In this paper, we newly consider the elevational directivity of the auxiliary antenna, and it will be indicated the performances of the proposed interference canceller.
Keyword (in Japanese) (See Japanese page) 
(in English) NTN / TN / auxiliary antenna / interference canceller / elevational directivity / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 124, SAT2026-26, pp. 66-71, July 2026.
Paper # SAT2026-26 
Date of Issue 2026-07-15 (AP, SANE, 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 AP2026-59 SANE2026-47 SAT2026-26

Conference Information
Committee SAT AP SANE  
Conference Date 2026-07-22 - 2026-07-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kobe Port Oasis 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation 
Paper Information
Registration To SAT 
Conference Code 2026-07-SAT-AP-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Terrestrial Interference Canceller Having an Auxiliary Antenna with Elevational Directivity in NTN 
Sub Title (in English)  
Keyword(1) NTN  
Keyword(2) TN  
Keyword(3) auxiliary antenna  
Keyword(4) interference canceller  
Keyword(5) elevational directivity  
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1st Author's Name Moe Tanaka  
1st Author's Affiliation Kogakuin University (Kogakuin Univ)
2nd Author's Name Takatoshi Sugiyama  
2nd Author's Affiliation Kogakuin University (Kogakuin Univ)
3rd Author's Name Toru Takahashi  
3rd Author's Affiliation MCC Corporation (MCC)
4th Author's Name Hisaaki Sasaki  
4th Author's Affiliation MCC Corporation (MCC)
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Speaker Author-1 
Date Time 2026-07-23 13:20:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # AP2026-59, SANE2026-47, SAT2026-26 
Volume (vol) vol.126 
Number (no) no.122(AP), no.123(SANE), no.124(SAT) 
Page pp.94-99(AP), pp.84-89(SANE), pp.66-71(SAT) 
#Pages 6 
Date of Issue 2026-07-15 (AP, SANE, SAT) 

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