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Paper Abstract and Keywords
Presentation 2022-10-20 15:10
Signal Phase Recovery Using Digital Signal Processing in Optical Wireless Communication Systems
Ryoma Murakami, Shiro Ryu (Meiji Univ.) OCS2022-21 OPE2022-67 LQE2022-30
Abstract (in Japanese) (See Japanese page) 
(in English) Research and development of optical wireless communication systems has been active. Optical receivers usually use a phase-locked loop (PLL) to regenerate the clock, but recent advances in digital signal processing technology have made phase-locking without a PLL possible. However, recent advances in digital signal processing technology have made phase-locking without a PLL possible. Therefore, in this paper, software-based signal phase regeneration processes such as M-th power phase estimation method and decision-directed phase estimation method has been applied to multi-level modulation scheme experiments. Moreover, experiments using a simultaneous clock transmission method, in which clock signal is simultaneously transmitted with a different wavelength from a signal wave were conducted. As a result, it was confirmed that stable communication is possible within a certain distance without using PLL in the multi-level modulation scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical Wireless Communications / Phase Estimation / Clock Recovery / PLL / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 216, OCS2022-21, pp. 22-27, Oct. 2022.
Paper # OCS2022-21 
Date of Issue 2022-10-13 (OCS, OPE, LQE) 
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 OCS2022-21 OPE2022-67 LQE2022-30

Conference Information
Committee OPE OCS LQE  
Conference Date 2022-10-20 - 2022-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2022-10-OPE-OCS-LQE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Signal Phase Recovery Using Digital Signal Processing in Optical Wireless Communication Systems 
Sub Title (in English)  
Keyword(1) Optical Wireless Communications  
Keyword(2) Phase Estimation  
Keyword(3) Clock Recovery  
Keyword(4) PLL  
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1st Author's Name Ryoma Murakami  
1st Author's Affiliation Meiji University (Meiji Univ.)
2nd Author's Name Shiro Ryu  
2nd Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2022-10-20 15:10:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2022-21, OPE2022-67, LQE2022-30 
Volume (vol) vol.122 
Number (no) no.216(OCS), no.217(OPE), no.218(LQE) 
Page pp.22-27 
#Pages 6 
Date of Issue 2022-10-13 (OCS, OPE, LQE) 

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