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Paper Abstract and Keywords
Presentation 2026-06-17 15:00
On Efficient Shaping Bit Design for Polar Coded-OFDM Signals With PAPR Reduction
Syunsuke Numa, Takumi Takahashi, Hideki Ochiai (U Osaka) RCS2026-41
Abstract (in Japanese) (See Japanese page) 
(in English) We study an efficient method for designing shaping bits in a polar-coded orthogonal frequency division multiplexing (OFDM) system with peak-to-average power ratio (PAPR) reduction. To effectively reduce PAPR of polar-coded OFDM through shaping bits, their bit indices should be carefully selected, considering their impact on the resulting OFDM signals. The conventional approach finds their positions by Monte Carlo simulations, which requires considerable computational cost especially when the code length of the polar code increases. Therefore, we introduce a low-complexity design method based on the Hamming weight associated with the generator matrix of polar codes. Focusing on the correlation of the generated OFDM symbols through shaping bits, we develop a systematic design method that does not rely on exhaustive search based on simulations. Computer simulations demonstrate that the proposed method can achieve PAPR reduction performance comparable to the conventional method with negligible design complexity.
Keyword (in Japanese) (See Japanese page) 
(in English) Polar-coded OFDM / PAPR reduction / shaping bits / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 72, RCS2026-41, pp. 92-97, June 2026.
Paper # RCS2026-41 
Date of Issue 2026-06-10 (RCS) 
ISSN 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 RCS2026-41

Conference Information
Committee RCS  
Conference Date 2026-06-17 - 2026-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) The Ohama Nobumoto Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2026-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Efficient Shaping Bit Design for Polar Coded-OFDM Signals With PAPR Reduction 
Sub Title (in English)  
Keyword(1) Polar-coded OFDM  
Keyword(2) PAPR reduction  
Keyword(3) shaping bits  
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1st Author's Name Syunsuke Numa  
1st Author's Affiliation The University of Osaka (U Osaka)
2nd Author's Name Takumi Takahashi  
2nd Author's Affiliation The University of Osaka (U Osaka)
3rd Author's Name Hideki Ochiai  
3rd Author's Affiliation The University of Osaka (U Osaka)
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Speaker Author-1 
Date Time 2026-06-17 15:00:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2026-41 
Volume (vol) vol.126 
Number (no) no.72 
Page pp.92-97 
#Pages 6 
Date of Issue 2026-06-10 (RCS) 

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