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Paper Abstract and Keywords
Presentation 2014-06-17 17:10
Non-orthogonal Multiple Access Using Intra-beam Superposition Coding and SIC in Base Station Cooperative MIMO Cellular Downlink
Nobuhide Nonaka (Tokyo Univ. of Science), Anass Benjebbour (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2014-56
Abstract (in Japanese) (See Japanese page) 
(in English) This paper extends our previously proposed non-orthogonal multiple access (NOMA) scheme to the base station (BS) cooperative multiple-input multiple-output (MIMO) cellular downlink for systems beyond LTE-Advanced. The proposed NOMA scheme employs intra-beam superposition coding of a multiuser signal at the transmitter and the spatial filtering of inter-beam interference followed by the intra-beam successive interference canceller (SIC) at the user terminal receiver. The transmitter beamforming (precoding) matrix is controlled based on open loop-type random beamforming (RB) using block-diagonalized beamforming matrix, which is appropriate for the BS cooperative MIMO transmission. Simulation results show that the proposed NOMA scheme with block-diagonalized random beamforming in BS cooperative multiuser MIMO and the intra-beam SIC achieves better system-level throughput compared to orthogonal multiple access (OMA), which is assumed in LTE-Advanced. We also show that the BS cooperative operation along with the proposed NOMA especially achieve large cell-edge user throughput gain which implies better user fairness and universal connectivity.
Keyword (in Japanese) (See Japanese page) 
(in English) Non-orthogonal multiple access / SIC / MIMO / Random beamforming / Base station cooperation / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 86, RCS2014-56, pp. 137-142, June 2014.
Paper # RCS2014-56 
Date of Issue 2014-06-10 (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 2014-06-17 - 2014-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa-ken Seinenkaikan (Naha) 
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 2014-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Non-orthogonal Multiple Access Using Intra-beam Superposition Coding and SIC in Base Station Cooperative MIMO Cellular Downlink 
Sub Title (in English)  
Keyword(1) Non-orthogonal multiple access  
Keyword(2) SIC  
Keyword(3) MIMO  
Keyword(4) Random beamforming  
Keyword(5) Base station cooperation  
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1st Author's Name Nobuhide Nonaka  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Anass Benjebbour  
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 2014-06-17 17:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2014-56 
Volume (vol) vol.114 
Number (no) no.86 
Page pp.137-142 
#Pages 6 
Date of Issue 2014-06-10 (RCS) 

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