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Paper Abstract and Keywords
Presentation 2025-10-08 09:40
MPSC Assignment Method for RGB-LED MISO Transmission Based on Variable N-Parallel Code Shift Keying
Yutaro Yamauchi, Yusuke Kozawa, Hiromasa Habuchi (Ibaraki Univ.) WBS2025-19
Abstract (in Japanese) (See Japanese page) 
(in English) In visible light communication, A variable N code shift keying (VN-CSK) has been proposed, which combines dimming control, positioning, and multiple access functions.
The authors have proposed VN-CSK type RGB-LED parallel transmission to improve both transmission efficiency and positioning performance. In this system, an extended prime sequence code (MPSC) and a modified pseudo-orthogonal M-sequence (MPOM) was utilized to eliminate the interference between color spectrum and co-channel interference.
In this paper, a method to reduce interference within an RGB-LED and between adjacent LEDs without extending the code length is investigated when each RGB-LED transmits information using the VN-CSK method with MPSC. In particular, a method to cyclically assign MPSC code sets to each color of each RGB-LED, taking into account the code characteristics of MPSC, is proposed. In this allocation method, the {$i$ mod $p$}th, {($i$+1) mod $p$}th, and {($i$) mod p}th MPSC code sets of code length $p^2$ are assigned to each color of the $i$-th RGB-LED, respectively. The bit error rate performance of this allocation method is evaluated through theoretical analysis.
Keyword (in Japanese) (See Japanese page) 
(in English) visible light communication / variable N code shift keying / RGB-LED / extended prime sequence code / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 197, WBS2025-19, pp. 5-10, Oct. 2025.
Paper # WBS2025-19 
Date of Issue 2025-10-01 (WBS) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF WBS2025-19

Conference Information
Committee WBS  
Conference Date 2025-10-08 - 2025-10-08 
Place (in Japanese) (See Japanese page) 
Place (in English) NEWCAT 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Communication Theory, Fundamentals and Applications, etc. 
Paper Information
Registration To WBS 
Conference Code 2025-10-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) MPSC Assignment Method for RGB-LED MISO Transmission Based on Variable N-Parallel Code Shift Keying 
Sub Title (in English)  
Keyword(1) visible light communication  
Keyword(2) variable N code shift keying  
Keyword(3) RGB-LED  
Keyword(4) extended prime sequence code  
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1st Author's Name Yutaro Yamauchi  
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 2025-10-08 09:40:00 
Presentation Time 20 minutes 
Registration for WBS 
Paper # WBS2025-19 
Volume (vol) vol.125 
Number (no) no.197 
Page pp.5-10 
#Pages 6 
Date of Issue 2025-10-01 (WBS) 

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