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Paper Abstract and Keywords
Presentation 2023-07-12 14:20
Construction of high-efficient information reconciliation method using fixed bit polar codes for continuous-variable quantum key distribution
Kensuke Yamaura (Nitech), Hiroyuki Endo (NICT), Eiji Okamoto (Nitech), Morio Toyoshima, Mikio Fujiwara, Masahide Sasaki (NICT) SAT2023-11
Abstract (in Japanese) (See Japanese page) 
(in English) Continuous Variable Quantum Key Distribution (CV-QKD) is being studied for various applications, including satellite-to-ground station communications, due to its inherent high wavelength filtering effect found in spontaneous emission and its compatibility with conventional optical communication components. This technology encodes random information onto weak coherent light and employs error correction using a public communication channel to eliminate errors in the quantum communication link. However, improving the error correction capability has been a challenge. Therefore, in this paper, we propose a method to improve the error correction performance on the public communication channel by applying error correction techniques called fixed-bit polar codes. Fixed-bit polar codes can embed various information, including pilot signals, into frozen bits of polar codes recently proposed, and it is specifically tailored for CV-QKD information reconciliation. Through numerical simulations, it was revealed that this method reduces improves information reconciliation efficiency by approximately 10% compared to using existing polar codes.
Keyword (in Japanese) (See Japanese page) 
(in English) continuous-variable quantum key distribution / information reconciliation / polar codes / fixed bit polar codes / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 105, SAT2023-11, pp. 7-12, July 2023.
Paper # SAT2023-11 
Date of Issue 2023-07-05 (SAT) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee AP SANE SAT  
Conference Date 2023-07-12 - 2023-07-14 
Place (in Japanese) (See Japanese page) 
Place (in English) The Citizen Activity Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation 
Paper Information
Registration To SAT 
Conference Code 2023-07-AP-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Construction of high-efficient information reconciliation method using fixed bit polar codes for continuous-variable quantum key distribution 
Sub Title (in English)  
Keyword(1) continuous-variable quantum key distribution  
Keyword(2) information reconciliation  
Keyword(3) polar codes  
Keyword(4) fixed bit polar codes  
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1st Author's Name Kensuke Yamaura  
1st Author's Affiliation Nagoya Institute of Technology (Nitech)
2nd Author's Name Hiroyuki Endo  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Eiji Okamoto  
3rd Author's Affiliation Nagoya Institute of Technology (Nitech)
4th Author's Name Morio Toyoshima  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Mikio Fujiwara  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Masahide Sasaki  
6th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2023-07-12 14:20:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # SAT2023-11 
Volume (vol) vol.123 
Number (no) no.105 
Page pp.7-12 
#Pages
Date of Issue 2023-07-05 (SAT) 


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