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Paper Abstract and Keywords
Presentation 2015-01-22 14:35
A Novel Dynamic Clustering Scheme for Multiuser MIMO-OFDM transmission in Distributed Antenna Systems
Ou Zhao, Hidekazu Murata (Kyoto Univ.) SIP2014-92 RCS2014-280
Abstract (in Japanese) (See Japanese page) 
(in English) To establish a wide service area of a multiuser multiple-input multiple-output (MU-MIMO) distributed antenna system (DAS), the use of dynamic clustering scheme (CS) is necessary to reduce a huge amount of computation in precoding. In this study, we propose a novel and efficient algorithm for dynamic clustering by employing a orthogonal frequency division multiplexing based MU-MIMO DAS and investigate its performance. We also compare the characteristics of the proposed and other classical dynamic CSs, for instance, exhaustive search, norm-based and location-based adaptive algorithm, in terms of sum rate improvement. Moreover, in order to make our results more universal, we further introduce the spatial correlation in the considered system, in particular, the spatial correlation in shadowing that exists widely in DASs. Computer simulation results indicate that the proposed CS provides better performance than the existing schemes and can achieve similar sum rate as the exhaustive search.
Keyword (in Japanese) (See Japanese page) 
(in English) Dynamic clustering scheme / Multiuser MIMO / Distributed antenna systems / Spatial correlation / Sum rate / Zero-forcing precoding / OFDM /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 395, RCS2014-280, pp. 67-72, Jan. 2015.
Paper # RCS2014-280 
Date of Issue 2015-01-15 (SIP, RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee SIP RCS  
Conference Date 2015-01-22 - 2015-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing for Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2015-01-SIP-RCS 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Dynamic Clustering Scheme for Multiuser MIMO-OFDM transmission in Distributed Antenna Systems 
Sub Title (in English)  
Keyword(1) Dynamic clustering scheme  
Keyword(2) Multiuser MIMO  
Keyword(3) Distributed antenna systems  
Keyword(4) Spatial correlation  
Keyword(5) Sum rate  
Keyword(6) Zero-forcing precoding  
Keyword(7) OFDM  
Keyword(8)  
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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Speaker Author-1 
Date Time 2015-01-22 14:35:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2014-92, RCS2014-280 
Volume (vol) vol.114 
Number (no) no.394(SIP), no.395(RCS) 
Page pp.67-72 
#Pages
Date of Issue 2015-01-15 (SIP, RCS) 


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