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Paper Abstract and Keywords
Presentation 2020-12-15 14:25
[Encouragement Talk] High-speed transmission scheme for optical wireless turbo code communication system
Ran Sun, Hiromasa Habuchi, Yusuke Kozawa (Ibaraki Univ.) WBS2020-30 ITS2020-26 RCC2020-33
Abstract (in Japanese) (See Japanese page) 
(in English) For improving the reliability of optical wireless communications, the implementations of error correcting codes are investigated. As the typical modulation schemes used in optical wireless system using turbo code, which is one of the error correcting codes, pulse position modulation (PPM) and on-off keying (OOK) are well known. Although the transmission efficiency of OOK system is excellent, this system has an optimum decision level adjustment problem and a bit-slip problem. The PPM system does not have those problems, but the transmission efficiency becomes half of that of the OOK system. For solving the respective issues of OOK and PPM, Hybrid PPM-OOK, which transmits signal using PPM and OOK simultaneously, have been proposed. In this paper, the turbo code system with hybrid PPM-OOK signaling (HPOS) has been advanced by adding a new signal converter to improve the performance in the free space optical (FSO) strong turbulence channel.
As a result, the new signal converter is effective. The BER performance of the proposed HPOS system is almost the same as that of the binary PPM punctured turbo code system, but its transmission efficiency of the proposed HPOS system is about 1.3 times higher.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical wireless communication / Turbo code / FSO channel / Hybrid PPM-OOK / Bit error rate / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 290, WBS2020-30, pp. 126-130, Dec. 2020.
Paper # WBS2020-30 
Date of Issue 2020-12-07 (WBS, ITS, RCC) 
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 WBS2020-30 ITS2020-26 RCC2020-33

Conference Information
Committee ITS WBS RCC  
Conference Date 2020-12-14 - 2020-12-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ITS Communications, Reliable Communication and Control, Radar and Sensing, etc. 
Paper Information
Registration To WBS 
Conference Code 2020-12-ITS-WBS-RCC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High-speed transmission scheme for optical wireless turbo code communication system 
Sub Title (in English)  
Keyword(1) Optical wireless communication  
Keyword(2) Turbo code  
Keyword(3) FSO channel  
Keyword(4) Hybrid PPM-OOK  
Keyword(5) Bit error rate  
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1st Author's Name Ran Sun  
1st Author's Affiliation Ibaraki University (Ibaraki Univ.)
2nd Author's Name Hiromasa Habuchi  
2nd Author's Affiliation Ibaraki University (Ibaraki Univ.)
3rd Author's Name Yusuke Kozawa  
3rd Author's Affiliation Ibaraki University (Ibaraki Univ.)
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Speaker Author-1 
Date Time 2020-12-15 14:25:00 
Presentation Time 55 minutes 
Registration for WBS 
Paper # WBS2020-30, ITS2020-26, RCC2020-33 
Volume (vol) vol.120 
Number (no) no.290(WBS), no.291(ITS), no.292(RCC) 
Page pp.126-130 
#Pages 5 
Date of Issue 2020-12-07 (WBS, ITS, RCC) 

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