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Paper Abstract and Keywords
Presentation 2016-03-02 16:55
A Study of Time-varying Channel Tolerance of Receiving Technique in Multiple-Input Multiple-Output Eigenbeam Space Division Multiplexing
Yusuke Dohi, Tetsushi Ikegami (Meiji Univ.) RCS2015-359
Abstract (in Japanese) (See Japanese page) 
(in English) A degraded communication performance for feedback delay has been recognized in MIMO (multiple-input multiple-output) E-SDM (eigenbeam space-division multiplexing) in time-varying channel. The degradation of the performance is different in its degree depending on MIMO reception technique. It is clarified that the degree of the degradation in case the spatial filtering technique is used, for example ZF (zero-forcing) technique and MMSE (minimum mean square error) technique, is smaller than the degradation for SVD (singular value decomposition) technique that decides a reception weight matrix based on the left singular matrix of channel matrix. In this study, the communication performance in time-varying channel of each reception technique are compared in the system model based on IEEE 802.11ac standard. As a result, it is cleared that the performance in case the improved SVD technique is used, whose reception weight is equal to the transmission weight, is better than it in case ZF technique is used, and is similar to it in case MMSE technique is used. In addition, the solution is proposed to improve SVD technique with channel prediction, and the performance of proposed solution is almost equal to it in case spatial filtering technique is used with channel prediction.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / E-SDM / Time-varying Channel / Channel Prediction / Phase Jump / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 472, RCS2015-359, pp. 157-162, March 2016.
Paper # RCS2015-359 
Date of Issue 2016-02-24 (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)
Download PDF RCS2015-359

Conference Information
Committee RCS CCS SR SRW  
Conference Date 2016-03-02 - 2016-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2016-03-RCS-CCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Time-varying Channel Tolerance of Receiving Technique in Multiple-Input Multiple-Output Eigenbeam Space Division Multiplexing 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) E-SDM  
Keyword(3) Time-varying Channel  
Keyword(4) Channel Prediction  
Keyword(5) Phase Jump  
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1st Author's Name Yusuke Dohi  
1st Author's Affiliation Meiji University (Meiji Univ.)
2nd Author's Name Tetsushi Ikegami  
2nd Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2016-03-02 16:55:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2015-359 
Volume (vol) vol.115 
Number (no) no.472 
Page pp.157-162 
#Pages 6 
Date of Issue 2016-02-24 (RCS) 

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