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Paper Abstract and Keywords
Presentation 2013-08-29 15:45
Single-carrier MIMO Transmission Using Adaptive Selection of Modulation Level and Spatial Multiplexing Order
Ryo Nagaoka, Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) RCS2013-128
Abstract (in Japanese) (See Japanese page) 
(in English) Multiple-input multiple-output (MIMO) transmission, which uses multiple antennas at transmitter and receiver, can increase the maximum throughput by using the spatial multiplexing or can improve the received signal-to-noise power ratio (SNR) by using the spatial diversity. In a cellular network, although the use of spatial multiplexing can increase the throughput for a user near the cell center, the throughput degrades for a user near the cell edge due not only to the path loss but also to strong co-channel interference (CCI) from neighboring cells. For a user near the cell edge, it is important to improve the received SNR so as not to degrade the throughput. Recently, we proposed single-carrier (SC) MIMO transmission using adaptive spatial multiplexing order selection to obtain the maximum throughput achievable with the present propagation environment. The spatial multiplexing order selection is based on the channel state information (CSI) and the (interference+noise) power obtained by the cyclic delay pilot channel estimation (CDP-CE). In our previous study, the spatial multiplexing order was adaptively selected while the modulation level was fixed. In this paper, we adaptively select both the modulation level and the spatial multiplexing order. The spatial multiplexing order and the modulation level which maximize the throughput are selected based on the CSI and (interference+noise) power estimated by CDP-CE. The outage throughput, achievable with the SC-MIMO transmission using adaptive selection of modulation level and spatial multiplexing order, is evaluated by computer simulation. It is shown that the throughput can be further increased by adaptively selecting both the spatial multiplexing order and the modulation level.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / multi-cell environment / modulation level / spatial multiplexing order / adaptive selection / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 194, RCS2013-128, pp. 31-36, Aug. 2013.
Paper # RCS2013-128 
Date of Issue 2013-08-22 (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 RCS2013-128

Conference Information
Committee RCS SAT  
Conference Date 2013-08-29 - 2013-08-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Shinshu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2013-08-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Single-carrier MIMO Transmission Using Adaptive Selection of Modulation Level and Spatial Multiplexing Order 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) multi-cell environment  
Keyword(3) modulation level  
Keyword(4) spatial multiplexing order  
Keyword(5) adaptive selection  
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1st Author's Name Ryo Nagaoka  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Shinya Kumagai  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Fumiyuki Adachi  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2013-08-29 15:45:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2013-128 
Volume (vol) vol.113 
Number (no) no.194 
Page pp.31-36 
#Pages 6 
Date of Issue 2013-08-22 (RCS) 

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