| Presentation | 2020-07-15 Numerical investigation on the application of polar codes to free-space quantum key distribution Yuma Yamashita, Hiroyuki Endo, Shingo Fujita, Eiji Okamoto, Hideki Takenaka, Morio Toyoshima, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | free space optics / satellite laser communications / quantum key distribution / information reconciliation / polar codes / low-density parity-check codes / secure sketch |
| Paper # | SAT2020-5 |
| Date of Issue | 2020-07-08 (SAT) |
| Conference Information | |
| Committee | AP / SANE / SAT |
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| Conference Date | 2020/7/15(3days) |
| 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 |
| Chair | Qiang Chen(Tohoku Univ.) / Akitsugu Nadai(NICT) / Hisashi Sujikai(NHK) |
| Vice Chair | Satoru Kurokawa(AIST) / Hiroyoshi Yamada(Niigata Univ.) / Makoto Tanaka(Tokai Univ.) / Hiroyasu Ishikawa(Nihon Univ.) / Tetsushi Ikegami(Meiji Univ.) |
| Secretary | Satoru Kurokawa(Tokyo Univ. of Agric. & Tech.) / Hiroyoshi Yamada(NTT DOCOMO) / Makoto Tanaka(Mitsubishi Electric) / Hiroyasu Ishikawa(Univ. of Tokyo) / Tetsushi Ikegami(NHK) |
| Assistant | Dr. Kim(Niigata Univ.) / Shunichi Futatsumori(ENRI) / Takuya Okura(NICT) / Daisuke Goto(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Space, Aeronautical and Navigational Electronics / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2020-07-15 |
| Paper # | SAT2020-5 |
| Volume (vol) | vol.120 |
| Number (no) | SAT-99 |
| Page | pp.pp.13-18(SAT), |
| #Pages | 6 |
| Date of Issue | 2020-07-08 (SAT) |