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Paper Abstract and Keywords
Presentation 2008-01-24 17:05
Imbalanced Power Allocation with Iterative Demodulation to Reduce IBI for Block Signal Transmissions Associated with Pseudo-Inverse Matrix Equalizer
Zhao Li, Hiroshi Furukawa (Kyushu Univ.) SIP2007-157 RCS2007-160
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose an imbalanced power allocation to compensate for interblock interference (IBI) for block signal transmissions associated with pseudo-inverse matrix equalizer. With the proposed method, data blocks are classified into odd/even ones according to their block indexes. In transmitter, we intentionally reduce transmit power of even data blocks and keep that of odd blocks unchanged whereby IBIs from the even blocks to the neighboring odd data blocks can be mitigated. In receiver, we use an iterative demodulation process. An odd data block is demodulated first without considering the weak IBIs due to the neighboring even data blocks with reduced transmit power. Then, the demodulated odd data block is used to help to remove its own IBI that interferes with the next even data block. Finally, the even data block from which the IBI has been removed is demodulated. After that, the demodulated odd/even blocks help each other to make a more accurate demodulation iteratively. Simulation results show that accuracy in symbol detections is improved due to higher SINR of the odd data blocks and the reduced IBI in the even data blocks.
Keyword (in Japanese) (See Japanese page) 
(in English) iterative demodulation / imbalance power allocation / pseudo-inverse matrix / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 440, RCS2007-160, pp. 157-161, Jan. 2008.
Paper # RCS2007-160 
Date of Issue 2008-01-17 (SIP, 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 SIP2007-157 RCS2007-160

Conference Information
Committee RCS SIP  
Conference Date 2008-01-24 - 2008-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City Uni. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2008-01-RCS-SIP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Imbalanced Power Allocation with Iterative Demodulation to Reduce IBI for Block Signal Transmissions Associated with Pseudo-Inverse Matrix Equalizer 
Sub Title (in English)  
Keyword(1) iterative demodulation  
Keyword(2) imbalance power allocation  
Keyword(3) pseudo-inverse matrix  
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1st Author's Name Zhao Li  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Hiroshi Furukawa  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2008-01-24 17:05:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2007-157, RCS2007-160 
Volume (vol) vol.107 
Number (no) no.438(SIP), no.440(RCS) 
Page pp.157-161 
#Pages 5 
Date of Issue 2008-01-17 (SIP, RCS) 

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