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Paper Abstract and Keywords
Presentation 2014-04-17 10:40
Sum Rate Analysis of ZF Receivers in MU-MIMO Systems under the Effects of Spatial Correlation
Ou Zhao, Hidekazu Murata (Kyoto Univ.) AP2014-2
Abstract (in Japanese) (See Japanese page) 
(in English) The performance of multi-user (MU) multiple-input multiple-output (MU-MIMO) systems is not only affected by multi-path fading but also from shadowing and path loss. In this paper, we concentrate on the sum rate distribution of MU-MIMO systems employing the linear zero-forcing (ZF) receivers, accounting for composite fading channel effects which consist of Rayleigh fading and shadowing, as well as spatial correlation at the transmit and receive side. Especially, we consider the spatially correlated shadowing model and propose closed-form bounds on the distribution of achievable sum rate in MU-MIMO systems. With the help of these bounds, we demonstrate a relationship between the inter-user distance and channel 10% outage sum rate under the different environmental features. A practical conclusion from our results is that the effect of spatially correlated shadowing can be considered as independent when the inter-user distance is approximately more than 5 times related to the correlation distance of shadowing. A detailed analysis on the effects of multi-path fading is also provided.
Keyword (in Japanese) (See Japanese page) 
(in English) Spatially correlated shadowing / Correlated multi-path fading / Outage probability / Sum rate / Zero-forcing detection / MU-MIMO / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 5, AP2014-2, pp. 7-12, April 2014.
Paper # AP2014-2 
Date of Issue 2014-04-10 (AP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 AP  
Conference Date 2014-04-17 - 2014-04-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Ritsumeikan University (Suzaku Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2014-04-AP 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sum Rate Analysis of ZF Receivers in MU-MIMO Systems under the Effects of Spatial Correlation 
Sub Title (in English)  
Keyword(1) Spatially correlated shadowing  
Keyword(2) Correlated multi-path fading  
Keyword(3) Outage probability  
Keyword(4) Sum rate  
Keyword(5) Zero-forcing detection  
Keyword(6) MU-MIMO  
1st Author's Name Ou Zhao  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Hidekazu Murata  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
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Date Time 2014-04-17 10:40:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2014-2 
Volume (vol) IEICE-114 
Number (no) no.5 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-AP-2014-04-10 

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