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Paper Abstract and Keywords
Presentation 2019-11-06 11:00
[Poster Presentation] A Study on Majority-Decision-based Divisional Maximum Likelihood Decoding for Image Sensor Communication
Zhengqiang Tang, Shintaro Arai (Okayama Univ. of Sci.) WBS2019-28 ITS2019-19 RCC2019-59
Abstract (in Japanese) (See Japanese page) 
(in English) Visible light communication (VLC) using an image sensor as a receiver, referred to as an image sensor communication (ISC), suffers from an inability to correctly recover data if an image captured by the receiver is degraded due to defocusing. This study proposes a novel demodulation method to overcome this problem. The proposed method first divides the LED transmitter area on the received image into two parts and sequentially demodulates the data using our previously proposed maximum likelihood decoding (MLD) method that uses pseudo-captured images. Also, the receiver performs a majority decision using results of the Euclidean distances that are calculated for the MLD method and increases the reliability of demodulation. Under simulation conditions in this study, the proposed method achieves about 90% computational complexity reduction as compared with the previous MLD method while having almost equivalent communication performance as the previous one.
Keyword (in Japanese) (See Japanese page) 
(in English) LED / visible light communication (VLC) / image sensor communication (ISC) / maximum likelihood decoding (MLD) / pseudo-captured images / divisional demodulation / majority decision /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 268, WBS2019-28, pp. 27-30, Nov. 2019.
Paper # WBS2019-28 
Date of Issue 2019-10-30 (WBS, ITS, RCC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF WBS2019-28 ITS2019-19 RCC2019-59

Conference Information
Committee RCC ITS WBS  
Conference Date 2019-11-06 - 2019-11-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Nara Institute of Science and Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ITS Communications, Reliable Communication and Control, Radar and Sensing, etc. 
Paper Information
Registration To WBS 
Conference Code 2019-11-RCC-ITS-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Majority-Decision-based Divisional Maximum Likelihood Decoding for Image Sensor Communication 
Sub Title (in English)  
Keyword(1) LED  
Keyword(2) visible light communication (VLC)  
Keyword(3) image sensor communication (ISC)  
Keyword(4) maximum likelihood decoding (MLD)  
Keyword(5) pseudo-captured images  
Keyword(6) divisional demodulation  
Keyword(7) majority decision  
1st Author's Name Zhengqiang Tang  
1st Author's Affiliation Okayama University of Science (Okayama Univ. of Sci.)
2nd Author's Name Shintaro Arai  
2nd Author's Affiliation Okayama University of Science (Okayama Univ. of Sci.)
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Date Time 2019-11-06 11:00:00 
Presentation Time 75 
Registration for WBS 
Paper # IEICE-WBS2019-28,IEICE-ITS2019-19,IEICE-RCC2019-59 
Volume (vol) IEICE-119 
Number (no) no.268(WBS), no.269(ITS), no.270(RCC) 
Page pp.27-30 
#Pages IEICE-4 
Date of Issue IEICE-WBS-2019-10-30,IEICE-ITS-2019-10-30,IEICE-RCC-2019-10-30 

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