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| Presentation | 2020-07-15 15:05 Numerical investigation on the application of polar codes to free-space quantum key distribution Yuma Yamashita (NITech), Hiroyuki Endo (NICT), Shingo Fujita, Eiji Okamoto (NITech), Hideki Takenaka, Morio Toyoshima (NICT)  SAT2020-5 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Quantum key distribution (QKD) is a technology to securely share keys against any attack physically permitted, with the principle of quantum mechanics. In recent years, the satellite QKD, which employs artificial satellites as trusted mobile nodes, has been attracting attention in order to overcome the bottleneck of transmission distance. However, in the satellite QKD, quality degradation due to atmospheric effects is expected, as in ordinary satellite laser communications. Therefore, it is desirable to apply an error-correcting code (ECC) that has high error-correcting performance even under the atmospheric-induced effects to the error-correcting process of the satellite QKD. Therefore, in this paper, we examined the application of polar codes, which is known as an ECC with high error correction capability. First, in order to optimize the error correction efficiency, we propose a method to adaptively obtain an appropriate code rate for the received signal strength that changes momentarily due to atmospheric effects. Then, we compare the throughput characteristics with polar codes to it with Low-Density Parity-Check (LDPC) codes, with the computer simulation assuming Bennett-Brassard 1984 protocol (BB84). | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | free space optics / satellite laser communications / quantum key distribution / information reconciliation / polar codes / low-density parity-check codes / secure sketch / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 99, SAT2020-5, pp. 13-18, July 2020. | |
| Paper # | SAT2020-5 | |
| Date of Issue | 2020-07-08 (SAT) | |
| 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 | SAT2020-5 |
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| Conference Information | |
| Committee | AP SANE SAT |
| Conference Date | 2020-07-15 - 2020-07-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Subsurface Electromagnetic Measurements, Sattelite Communication, Radio propagation, Antennas and Propagation |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2020-07-AP-SANE-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Numerical investigation on the application of polar codes to free-space quantum key distribution |
| Sub Title (in English) | |
| Keyword(1) | free space optics |
| Keyword(2) | satellite laser communications |
| Keyword(3) | quantum key distribution |
| Keyword(4) | information reconciliation |
| Keyword(5) | polar codes |
| Keyword(6) | low-density parity-check codes |
| Keyword(7) | secure sketch |
| Keyword(8) | |
| 1st Author's Name | Yuma Yamashita |
| 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 | Shingo Fujita |
| 3rd Author's Affiliation | Nagoya Institute of Technology (NITech) |
| 4th Author's Name | Eiji Okamoto |
| 4th Author's Affiliation | Nagoya Institute of Technology (NITech) |
| 5th Author's Name | Hideki Takenaka |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Morio Toyoshima |
| 6th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2020-07-15 15:05:00 |
| Presentation Time | 25 minutes |
| Registration for | SAT |
| Paper # | SAT2020-5 |
| Volume (vol) | vol.120 |
| Number (no) | no.99 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2020-07-08 (SAT) |
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