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Paper Abstract and Keywords
Presentation 2026-07-09 13:22
Deep Joint Source-Channel Coding Exploiting the Roll-Off Region for Underwater Wireless Optical Communication
Nana Hayashida (UOsaka/CIST), Naoto Yoshimoto (CIST), Ken-ichi Suzuki (Trimatiz), Daisuke Hisano (Keio) CS2026-13
Abstract (in Japanese) (See Japanese page) 
(in English) For high-quality image and video transmission in underwater environments, DeepJSCC has been studied for application to UWOC. It can maintain a certain level of reconstruction quality even under low SNR conditions. In digital communication systems including UWOC, nyquist pulse shaping is applied and an RRC filter requires excess bandwidth determined by the roll-off factor. In this paper, we propose a DeepJSCC architecture that omits zero-insertion upsampling and incorporates band limitation into training phase. Simulation results show that the proposed configuration achieves higher PSNR than the conventional configuration.
Keyword (in Japanese) (See Japanese page) 
(in English) Semantic communication / Deep Learning / Underwater wireless optical communication / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 95, CS2026-13, pp. 12-13, July 2026.
Paper # CS2026-13 
Date of Issue 2026-07-02 (CS) 
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 CS2026-13

Conference Information
Committee CS  
Conference Date 2026-07-09 - 2026-07-10 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Semantic communications, Access networks, Underwater and underground communications, IoT, Cognitive radio, Coding scheme, etc. 
Paper Information
Registration To CS 
Conference Code 2026-07-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Deep Joint Source-Channel Coding Exploiting the Roll-Off Region for Underwater Wireless Optical Communication 
Sub Title (in English)  
Keyword(1) Semantic communication  
Keyword(2) Deep Learning  
Keyword(3) Underwater wireless optical communication  
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1st Author's Name Nana Hayashida  
1st Author's Affiliation The University of Osaka/Chitose Institute of Science and Technology (UOsaka/CIST)
2nd Author's Name Naoto Yoshimoto  
2nd Author's Affiliation Chitose Institute of Science and Technology (CIST)
3rd Author's Name Ken-ichi Suzuki  
3rd Author's Affiliation Trimatiz Limited (Trimatiz)
4th Author's Name Daisuke Hisano  
4th Author's Affiliation Keio University (Keio)
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Speaker Author-1 
Date Time 2026-07-09 13:22:00 
Presentation Time 2 minutes 
Registration for CS 
Paper # CS2026-13 
Volume (vol) vol.126 
Number (no) no.95 
Page pp.12-13 
#Pages 2 
Date of Issue 2026-07-02 (CS) 

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