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Paper Abstract and Keywords
Presentation 2013-06-21 10:30
Investigations on System-level Throughput of Non-Orthogonal Access with SIC in Cellular Downlink When Channel Estimation Error Exists
Kenta Yamamoto (Tokyo Univ. of Science), Yuya Saito (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2013-67
Abstract (in Japanese) (See Japanese page) 
(in English) We investigate the influence of channel estimation error on the achievable system-level throughput performance of the non-orthogonal access with a successive interference canceller (SIC) in the cellular downlink. The channel estimation error in the non-orthogonal access causes the residual interference in SIC process, which decreases the achievable user throughput. Furthermore, the channel estimation error will also causes the error in base station transmitter rate control for respective users, which may result in the decoding error at not only the destination user terminal but also other user terminals for SIC. However, we show that by using simple transmission rate backoff algorithm, the impact of the channel estimation error is effectively alleviated and the non-orthogonal access with SIC can achieve clear average and cell-edge user throughput gain relative to the orthogonal access similar to the case with perfect channel estimation.
Keyword (in Japanese) (See Japanese page) 
(in English) Cellular system / Downlink / Non-orthogonal multiple access / SIC / Channel estimation / Transmission rate control / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 93, RCS2013-67, pp. 177-182, June 2013.
Paper # RCS2013-67 
Date of Issue 2013-06-13 (RCS) 
ISSN Print edition: ISSN 0913-5685    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)
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Conference Information
Committee RCS  
Conference Date 2013-06-20 - 2013-06-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2013-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigations on System-level Throughput of Non-Orthogonal Access with SIC in Cellular Downlink When Channel Estimation Error Exists 
Sub Title (in English)  
Keyword(1) Cellular system  
Keyword(2) Downlink  
Keyword(3) Non-orthogonal multiple access  
Keyword(4) SIC  
Keyword(5) Channel estimation  
Keyword(6) Transmission rate control  
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Keyword(8)  
1st Author's Name Kenta Yamamoto  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Yuya Saito  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Kenichi Higuchi  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2013-06-21 10:30:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2013-67 
Volume (vol) vol.113 
Number (no) no.93 
Page pp.177-182 
#Pages 6 
Date of Issue 2013-06-13 (RCS) 

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