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Paper Abstract and Keywords
Presentation 2018-03-13 09:45
A low complexity blind SLM scheme for PAPR reduction in LDPC coded OFDM system
Hiroki Shimada, Toshiharu Kojima (UEC) CAS2017-147 CS2017-101
Abstract (in Japanese) (See Japanese page) 
(in English) Selected mapping (SLM) is one of peak-to-average power ratio (PAPR) reduction schemes for orthogonal frequency division multiplexing (OFDM) signals. Because an SLM probabilistically reduces PAPR with signal scrambling, it is required to send side information on the selected scrambling code, which degrades the transmission efficiency. Blind SLMs estimating the selected scrambling code are therefore investigated. For low-density parity-check (LDPC) coded OFDM signals, a blind SLM using log likelihood ratios calculated in the sum-product algorithm was proposed. This conventional scheme needs a long processing time when sequential signal processing is introduced. In order to shorten processing time by reducing computational complexity, we propose a blind SLM with a code estimation scheme employing the forced convergence decoding. Results of computer simulation show that the proposed SLM reduces the complexity.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / PAPR / SLM / LDPC codes / sum-product decoding / Forced Convergence decoding / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 504, CS2017-101, pp. 81-86, March 2018.
Paper # CS2017-101 
Date of Issue 2018-03-05 (CAS, CS) 
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 CAS2017-147 CS2017-101

Conference Information
Committee CS CAS  
Conference Date 2018-03-12 - 2018-03-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Nishijin Plaza, Kyushu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. 
Paper Information
Registration To CS 
Conference Code 2018-03-CS-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A low complexity blind SLM scheme for PAPR reduction in LDPC coded OFDM system 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) PAPR  
Keyword(3) SLM  
Keyword(4) LDPC codes  
Keyword(5) sum-product decoding  
Keyword(6) Forced Convergence decoding  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroki Shimada  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Toshiharu Kojima  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2018-03-13 09:45:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CAS2017-147, CS2017-101 
Volume (vol) vol.117 
Number (no) no.503(CAS), no.504(CS) 
Page pp.81-86 
#Pages 6 
Date of Issue 2018-03-05 (CAS, CS) 

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