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Paper Abstract and Keywords
Presentation 2023-05-19 08:45
Predictive Equalization for CSK Modulation in Underwater OCC
Asako Shigenawa, Yuika Yasui, Yu Nakayama (Tokyo Univ. of Agriculture and Technology) SeMI2023-8
Abstract (in Japanese) (See Japanese page) 
(in English) Directivity control is an important issue in practical underwater optical communication (UWOC) due to the turbulence of the ocean. Underwater optical camera communication (UWOCC) is a low-directivity communication channel between an LED and a complementary metal oxide-semiconductor (CMOS) image sensor in a camera. Despite the considerable attention that OCC has received, little research has been conducted on equalization and demodulation of received optical signals in underwater environments. Therefore, this paper proposes a predictive equalization technique for UWOCC using color shift keying (CSK). The basic idea of the proposed equalization is to predict color shift in the color space considering the different attenuation of light intensity according to wavelength. We demonstrate the feasibility of the proposed predictive equalization in real-world environments including seas and lakes. Experimental results with 8 and 16 CSK transmissions confirm the feasibility of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Visible Light Communication / wireless communication / cameras / CMOS image sensors / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 31, SeMI2023-8, pp. 30-35, May 2023.
Paper # SeMI2023-8 
Date of Issue 2023-05-11 (SeMI) 
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)
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Conference Information
Committee SeMI IPSJ-ITS IPSJ-MBL IPSJ-DPS  
Conference Date 2023-05-18 - 2023-05-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Institute of Science and Technology (OIST) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SeMI 
Conference Code 2023-05-SeMI-ITS-MBL-DPS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Predictive Equalization for CSK Modulation in Underwater OCC 
Sub Title (in English)  
Keyword(1) Visible Light Communication  
Keyword(2) wireless communication  
Keyword(3) cameras  
Keyword(4) CMOS image sensors  
Keyword(5)  
Keyword(6)  
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Keyword(8)  
1st Author's Name Asako Shigenawa  
1st Author's Affiliation Tokyo University of Agriculture and Tech (Tokyo Univ. of Agriculture and Technology)
2nd Author's Name Yuika Yasui  
2nd Author's Affiliation Tokyo University of Agriculture and Tech (Tokyo Univ. of Agriculture and Technology)
3rd Author's Name Yu Nakayama  
3rd Author's Affiliation Tokyo University of Agriculture and Tech (Tokyo Univ. of Agriculture and Technology)
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Speaker Author-1 
Date Time 2023-05-19 08:45:00 
Presentation Time 15 minutes 
Registration for SeMI 
Paper # SeMI2023-8 
Volume (vol) vol.123 
Number (no) no.31 
Page pp.30-35 
#Pages 6 
Date of Issue 2023-05-11 (SeMI) 

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