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Paper Abstract and Keywords
Presentation 2026-06-17 15:10
A Study on Adaptive Polar Code Design and Symbol Distribution Approximation for Low-Complexity MIMO-OFDM Receivers
Tomoki Yokotani, Takumi Takahashi, Hideki Ochiai (Osaka Univ) RCS2026-42
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we focus on the design of a low-complexity receiver
for coded multiple-input multiple-output~(MIMO) orthogonal frequency-division multiplexing~(OFDM) systems
targeting Internet of Things (IoT) device communications.
For MIMO detection, we employ the symbol distribution approximation~(SDA),
which successfully reduces the receiver complexity while achieving
near-optimal performance.
For channel coding and decoding,
we adopt polar codes with successive cancellation~(SC) decoding,
where the code is designed according to the characteristics of
each MIMO-OFDM channel realization.
The use of SDA allows outperforming
the conventional linear minimum mean square error (LMMSE)
detector with even lower detection complexity, whereas
the proposed polar coding approach can achieve performance comparable to
low-density parity-check (LDPC) codes with lower decoding latency.
Considering the constraints of IoT devices,
simulations are performed over a MIMO-OFDM channel with a small number of antennas,
which verifies the effectiveness of the proposed approach.
Keyword (in Japanese) (See Japanese page) 
(in English) Polar codes / MIMO-OFDM / MIMO detection / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 72, RCS2026-42, pp. 98-103, June 2026.
Paper # RCS2026-42 
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 RCS2026-42

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) A Study on Adaptive Polar Code Design and Symbol Distribution Approximation for Low-Complexity MIMO-OFDM Receivers 
Sub Title (in English)  
Keyword(1) Polar codes  
Keyword(2) MIMO-OFDM  
Keyword(3) MIMO detection  
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1st Author's Name Tomoki Yokotani  
1st Author's Affiliation The university of Osaka (Osaka Univ)
2nd Author's Name Takumi Takahashi  
2nd Author's Affiliation The university of Osaka (Osaka Univ)
3rd Author's Name Hideki Ochiai  
3rd Author's Affiliation The university of Osaka (Osaka Univ)
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Speaker Author-1 
Date Time 2026-06-17 15:10:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2026-42 
Volume (vol) vol.126 
Number (no) no.72 
Page pp.98-103 
#Pages 6 
Date of Issue 2026-06-10 (RCS) 

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