Numerical Study on Secrecy Capacity and Code Length Dependence of the Performances in Optical Wiretap Channels

H. Endo, T. S. Han, T. Aoki, M. Sasaki*

*この研究の対応する著者

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Secrecy issues of free-space optical links realizing information theoretically secure communications and high transmission rates are discussed. We numerically study secrecy communication rates of optical wiretap channel based on on-off keying (OOK) modulation under typical conditions met in satellite-ground links. It is shown that, under reasonable degraded conditions on a wiretapper, information theoretically secure communications should be possible in a much wider distance range than a range limit of quantum key distribution, enabling secure optical links between geostationary Earth orbit satellites and ground stations with currently available technologies. We also provide the upper bounds on the decoding error probability and the leaked information to estimate a necessary code length for given required levels of performances. This result ensures that a reasonable length of wiretap channel code for our proposed scheme must exist.

本文言語English
論文番号7219366
ジャーナルIEEE Photonics Journal
7
5
DOI
出版ステータスPublished - 2015 10月 1

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 電子工学および電気工学

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