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Paper Abstract and Keywords
Presentation 2014-03-05 16:10
An application of Multiple Sphere Encoding to Downlink MU-MIMO VP
Shunsuke Sasaki, Fumio Takahata (Waseda Univ.) RCS2013-390
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes the computational complexity reduction technique for the Downlink Multi-User Multiple Input Multiple Output (Downlink MU-MIMO) using Vector Perturbation (VP). VP is one of the Non-Linear precoding methods, which minimize the required transmission power, by searching the optimal perturbation vector among the infinite number of perturbation vector candidates. However, its computational complexity increases exponentially with the number of spatial multiplexing mobile terminals. To reduce the complexity of VP, Sphere Encoding VP (SE-VP) has been proposed, which is based on sphere search algorithm, but its computational complexity remains relatively high. In this paper, we propose Multiple Sphere Encoding VP (MSE-VP), which uses multiple spheres, and clarifies its transmission performance and computational complexity by computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) MU-MIMO / Non-Linear precoding / Vector Perturbation / Sphere Encoding / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 456, RCS2013-390, pp. 505-510, March 2014.
Paper # RCS2013-390 
Date of Issue 2014-02-24 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 SR SRW  
Conference Date 2014-03-03 - 2014-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2014-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An application of Multiple Sphere Encoding to Downlink MU-MIMO VP 
Sub Title (in English)  
Keyword(1) MU-MIMO  
Keyword(2) Non-Linear precoding  
Keyword(3) Vector Perturbation  
Keyword(4) Sphere Encoding  
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1st Author's Name Shunsuke Sasaki  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Fumio Takahata  
2nd Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2014-03-05 16:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2013-390 
Volume (vol) vol.113 
Number (no) no.456 
Page pp.505-510 
#Pages
Date of Issue 2014-02-24 (RCS) 


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