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Paper Abstract and Keywords
Presentation 2022-07-25 09:30
[Poster Presentation] A Study on Performance Improvement of Energy Harvesting in Underwater Simultaneous Light Wave Information and Power Transfer Using Inverted N-CSK
Masao Koshimoto, Yusuke Kozawa, Hiromasa Habuchi (Ibaraki Univ) WBS2022-20 MICT2022-20
Abstract (in Japanese) (See Japanese page) 
(in English) Underwater simultaneous light information and power transfer (USLIPT) has recently attracted attention for efficient exploration and excavation of international seabed resources. In this paper, N parallel code shift keying (N-CSK), in which N Pseudo-noise (PN) codes are selected according to the transmitted signal, is adopted as a multiple access scheme to study USLIPT with multiple access. In this paper, we propose an inverted N-CSK scheme to further improve the power-feeding performance of the USLIPT using N-CSK by constantly turning on M-N unselected LEDs, which are not used as transmit signals in N-CSK, to improve the power-feeding performance while maintaining the amount of information transmitted. Error Rate (BER) performance and power supply are evaluated by theoretical analysis. The results show that the power feeding performance degrades with decreasing N in N-CSK, but improves with decreasing N in the proposed scheme, because the power feeding performance improves with increasing N. This is because, in the proposed method, the larger N is, the fewer the number of LEDs are lit. However, no matter how large N is, the power-feeding performance of the proposed method is superior to that of N-CSK.
Keyword (in Japanese) (See Japanese page) 
(in English) USLIPT / N-CSK / Inverted N-CSK / Power splitting / BER / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 131, WBS2022-20, pp. 18-23, July 2022.
Paper # WBS2022-20 
Date of Issue 2022-07-18 (WBS, MICT) 
ISSN Online edition: ISSN 2432-6380
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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 WBS2022-20 MICT2022-20

Conference Information
Committee MICT WBS  
Conference Date 2022-07-25 - 2022-07-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Prefectural University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wideband System, Healthcare and Medical Information Communication Technologies, Student Poster Session, etc. 
Paper Information
Registration To WBS 
Conference Code 2022-07-MICT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Performance Improvement of Energy Harvesting in Underwater Simultaneous Light Wave Information and Power Transfer Using Inverted N-CSK 
Sub Title (in English)  
Keyword(1) USLIPT  
Keyword(2) N-CSK  
Keyword(3) Inverted N-CSK  
Keyword(4) Power splitting  
Keyword(5) BER  
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1st Author's Name Masao Koshimoto  
1st Author's Affiliation Ibaraki University (Ibaraki Univ)
2nd Author's Name Yusuke Kozawa  
2nd Author's Affiliation Ibaraki University (Ibaraki Univ)
3rd Author's Name Hiromasa Habuchi  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ)
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Speaker Author-1 
Date Time 2022-07-25 09:30:00 
Presentation Time 75 minutes 
Registration for WBS 
Paper # WBS2022-20, MICT2022-20 
Volume (vol) vol.122 
Number (no) no.131(WBS), no.132(MICT) 
Page pp.18-23 
#Pages
Date of Issue 2022-07-18 (WBS, MICT) 


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