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Paper Abstract and Keywords
Presentation 2012-11-15 15:10
[Requested Talk]Multiuser MIMO and inter-cell interference management techniques for next generation wireless LANs
Koichi Ishihara, Tomoki Murakami, Yusuke Asai, Takeo Ichikawa, Masato Mizoguchi (NTT) AP2012-102 RCS2012-169
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we introduce a real-time downlink multiuser MIMO (DL MU-MIMO) transceiver we developed for next generation wireless LAN systems and show some indoor experimental results. In the transceiver, channel state information (CSI) is estimated at each station (STA) and fed back to an access point (AP) on a real-time basis. At the AP, zero forcing (ZF) transmit beamforming weight for DL MU-MIMO transmission is successively calculated by using the estimated CSI. Furthermore, we introduce an inter-cell interference (ICI) management technique by coordinated APs in wireless LANs and show indoor experimental results obtained with the implemented transceiver. In the transceiver, ICI management can be easily carried out by using the transmit beamforming for DL MU-MIMO transmission. We verify that DL MU-MIMO and ICI mitigation techniques can improve throughput for next generation wireless LAN systems.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless LAN / multiuser MIMO / inter-cell interference management / OFDM / zero-forcing / downlink / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 286, RCS2012-169, pp. 49-54, Nov. 2012.
Paper # RCS2012-169 
Date of Issue 2012-11-08 (AP, 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 AP2012-102 RCS2012-169

Conference Information
Committee AP RCS  
Conference Date 2012-11-14 - 2012-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Denki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2012-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) [Requested Talk]Multiuser MIMO and inter-cell interference management techniques for next generation wireless LANs 
Sub Title (in English)  
Keyword(1) wireless LAN  
Keyword(2) multiuser MIMO  
Keyword(3) inter-cell interference management  
Keyword(4) OFDM  
Keyword(5) zero-forcing  
Keyword(6) downlink  
Keyword(7)  
Keyword(8)  
1st Author's Name Koichi Ishihara  
1st Author's Affiliation NTT (NTT)
2nd Author's Name Tomoki Murakami  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Yusuke Asai  
3rd Author's Affiliation NTT (NTT)
4th Author's Name Takeo Ichikawa  
4th Author's Affiliation NTT (NTT)
5th Author's Name Masato Mizoguchi  
5th Author's Affiliation NTT (NTT)
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Speaker Author-1 
Date Time 2012-11-15 15:10:00 
Presentation Time 30 minutes 
Registration for RCS 
Paper # AP2012-102, RCS2012-169 
Volume (vol) vol.112 
Number (no) no.285(AP), no.286(RCS) 
Page pp.55-60(AP), pp.49-54(RCS) 
#Pages 6 
Date of Issue 2012-11-08 (AP, RCS) 

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