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Paper Abstract and Keywords
Presentation 2021-05-21 09:20
BPPM frame synchronization method in RGB-LED parallel transmission
Jyo Matsushima, Tomohiro Kiguchi, Hiromasa Habuchi (Ibaraki Univ.) WBS2021-12 RCC2021-12 SAT2021-10 MICT2021-8
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, a frame synchronization method for parallel RGB-LED transmission is proposed in optical wireless communications using a binary pulse position modulation (BPPM). In the proposed system, the different colors of RGB-LED transmit different source data sequences by BPPM. Therefore, in synchronous case where frame is synchronized, the probability that the correlation value between the received signal and the Manchester signal becomes $pm$ 1 is 1. In the asynchronous case where the frame synchronization timing slips off 1 slot, the probability of the correlation value being $pm$ 1 is 1/2. A simple frame synchronization system, that utilizes this difference in probability between synchronous and asynchronous states, is shown. Furthermore, the average frame retention time and average frame recovery time are evaluated. Consequently, it is shown that there is a trade-off between the average frame retention time and the average frame recovery time. It is also found that there is an optimal number of counter stages in the frame synchronization system for achieving the required frame recovery time.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical wireless communication / Pulse Position Modulation / Frame Synchronization / / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 24, WBS2021-12, pp. 62-65, May 2021.
Paper # WBS2021-12 
Date of Issue 2021-05-13 (WBS, RCC, SAT, MICT) 
ISSN 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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF WBS2021-12 RCC2021-12 SAT2021-10 MICT2021-8

Conference Information
Committee WBS RCC SAT MICT  
Conference Date 2021-05-20 - 2021-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Online (Zoom) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Coding, Modulation, Signal processing, Reliable Communication and Control, Healthcare and Medical Information Communication Technologies, and General 
Paper Information
Registration To WBS 
Conference Code 2021-05-WBS-RCC-SAT-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) BPPM frame synchronization method in RGB-LED parallel transmission 
Sub Title (in English)  
Keyword(1) Optical wireless communication  
Keyword(2) Pulse Position Modulation  
Keyword(3) Frame Synchronization  
1st Author's Name Jyo Matsushima  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Tomohiro Kiguchi  
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 2021-05-21 09:20:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # WBS2021-12, RCC2021-12, SAT2021-10, MICT2021-8 
Volume (vol) vol.121 
Number (no) no.24(WBS), no.25(RCC), no.26(SAT), no.27(MICT) 
Page pp.62-65(WBS), pp.62-65(RCC), pp.50-53(SAT), pp.40-43(MICT) 
Date of Issue 2021-05-13 (WBS, RCC, SAT, MICT) 

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