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Paper Abstract and Keywords
Presentation 2022-01-14 11:00
Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method
Keiji Shimada, Mizuki Inagaki, Takahiro Kodama (Kagawa Univ.) OCS2021-36
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, optical communication transceivers have been required to have high confidentiality for data. A shared key cryptosystem at the physical layer has been introduced in digital signal processing. We proposed a symbol arrangement retention masking M-QAM method that changes regularly according to the encryption key bit while retaining the symbol arrangement containing data. In this time, we applied the symbol arrangement retention masking method to the polarization multiplex M-QAM signal. We evaluated the bit error rate (BER) characteristics by hard decision using threshold processing. In addition, assuming a case where an eavesdropper attempts soft-judgment decryption using likelihood, the amount of information is evaluated by mutual information (GMI: Generalized Mutual Information) as an evaluation index of security strength.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical coherent communication / digital signal processing / quadrature amplitude modulation / common key cryptography / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 320, OCS2021-36, pp. 16-21, Jan. 2022.
Paper # OCS2021-36 
Date of Issue 2022-01-06 (OCS) 
ISSN Print edition: ISSN 0913-5685  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 OCS2021-36

Conference Information
Committee OCS CS  
Conference Date 2022-01-13 - 2022-01-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Conference room 204A・B at KDDI Ishin-hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core and metro system, Submarine telecommunications system, Optical access system and next generation PON, Ethernet, Optical Transport Network (OTN), Transmission monitoring and control, Design and tool for optical transmission system, Co-operation between optical and mobile, etc. 
Paper Information
Registration To OCS 
Conference Code 2022-01-OCS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method 
Sub Title (in English)  
Keyword(1) Optical coherent communication  
Keyword(2) digital signal processing  
Keyword(3) quadrature amplitude modulation  
Keyword(4) common key cryptography  
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1st Author's Name Keiji Shimada  
1st Author's Affiliation Kagawa University (Kagawa Univ.)
2nd Author's Name Mizuki Inagaki  
2nd Author's Affiliation Kagawa University (Kagawa Univ.)
3rd Author's Name Takahiro Kodama  
3rd Author's Affiliation Kagawa University (Kagawa Univ.)
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Speaker Author-1 
Date Time 2022-01-14 11:00:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2021-36 
Volume (vol) vol.121 
Number (no) no.320 
Page pp.16-21 
#Pages
Date of Issue 2022-01-06 (OCS) 


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