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Paper Abstract and Keywords
Presentation 2018-03-01 09:00
Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2017-346
Abstract (in Japanese) (See Japanese page) 
(in English) This paper improves our previously proposed semi-blind uplink interference suppression scheme for multicell multiuser massive MIMO systems by employing beamspace approach. Constant modulus algorithm (CMA) known as a blind adaptive array scheme can fully exploit degree of freedom (DoF) of massive antenna array to suppress inter-user interference (IUI) and inter-cell interference (ICI). Meanwhile, it excessively consumes DoF when the number of incoming signal is fewer than that of receiving antenna elements. We introduce beamspace method which converts the number of array input from the antenna-space to the beamspace and controls DoF expended for semi-blind interference suppression. It can optimize the array gain and interference suppression ability and resultant output signal-to-interference and noise power ratio (SINR) can be improved. Computer simulation reveals the improved SINR and outage probability performances. It can also contribute to reduce the required number of data symbols.
Keyword (in Japanese) (See Japanese page) 
(in English) Massive MIMO / Multicell / Adaptive array / Constant modulus algorithm / Pilot contamination / Channel estimation / Decision feedback / Beamspace  
Reference Info. IEICE Tech. Rep., vol. 117, no. 456, RCS2017-346, pp. 167-172, Feb. 2018.
Paper # RCS2017-346 
Date of Issue 2018-02-21 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 SR SRW  
Conference Date 2018-02-28 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2018-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method 
Sub Title (in English)  
Keyword(1) Massive MIMO  
Keyword(2) Multicell  
Keyword(3) Adaptive array  
Keyword(4) Constant modulus algorithm  
Keyword(5) Pilot contamination  
Keyword(6) Channel estimation  
Keyword(7) Decision feedback  
Keyword(8) Beamspace  
1st Author's Name Kazuki Maruta  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Chang-Jun Ahn  
2nd Author's Affiliation Chiba University (Chiba Univ.)
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Speaker
Date Time 2018-03-01 09:00:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2017-346 
Volume (vol) IEICE-117 
Number (no) no.456 
Page pp.167-172 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2018-02-21 


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