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Paper Abstract and Keywords
Presentation 2021-11-10 15:55
A study on Down Link Transmit Interference Canceller for MIMO when HAPS and Cellular Mobile share a frequency.
Ryuki Yanagawa, Teruya Fujii (Tokyo Tech) RCS2021-153
Abstract (in Japanese) (See Japanese page) 
(in English) In mobile communication systems, HAPS (High-Altitude Platform System), which flies at an altitude of about 20 km and uses the same frequency as that of the ground as a communication base station, is expected to be a technology to provide a stable communication environment. In the HAPS configuration using the same frequency, interference from the HAPS to the terrestrial cellular system is an issue, and interference mitigation technology is essential to improve the interference. In this paper, we propose a "network-coupled transmission interference canceller" in which HAPS cells and macrocells cooperate with each other to cancel HAPS cell signals simultaneously. In general, there is a limit to the transmission power of a macrocell. Therefore, we propose a transmission interference canceller technique that takes into account the maximum transmission power of the cancellation signal of each macrocell, and evaluate the effectiveness of its application.
Keyword (in Japanese) (See Japanese page) 
(in English) HAPS / mobile communication / coordinated control network / downlink / frequency sharing / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 234, RCS2021-153, pp. 52-57, Nov. 2021.
Paper # RCS2021-153 
Date of Issue 2021-11-03 (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 RCS2021-153

Conference Information
Committee AP RCS  
Conference Date 2021-11-10 - 2021-11-12 
Place (in Japanese) (See Japanese page) 
Place (in English) NBC-Bekkan (Nagasaki) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2021-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on Down Link Transmit Interference Canceller for MIMO when HAPS and Cellular Mobile share a frequency. 
Sub Title (in English)  
Keyword(1) HAPS  
Keyword(2) mobile communication  
Keyword(3) coordinated control network  
Keyword(4) downlink  
Keyword(5) frequency sharing  
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Keyword(8)  
1st Author's Name Ryuki Yanagawa  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Teruya Fujii  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2021-11-10 15:55:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2021-153 
Volume (vol) vol.121 
Number (no) no.234 
Page pp.52-57 
#Pages 6 
Date of Issue 2021-11-03 (RCS) 

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