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

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

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Article number7219366
    JournalIEEE Photonics Journal
    Volume7
    Issue number5
    DOIs
    Publication statusPublished - 2015 Oct 1

    Fingerprint

    Optical links
    communication
    Satellites
    Quantum cryptography
    Telecommunication links
    Decoding
    keying
    Orbits
    ground stations
    Earth orbits
    Earth (planet)
    Modulation
    decoding
    Communication
    stations
    modulation
    estimates
    Secure communication
    Error probability
    Amplitude shift keying

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Atomic and Molecular Physics, and Optics

    Cite this

    Numerical Study on Secrecy Capacity and Code Length Dependence of the Performances in Optical Wiretap Channels. / Endo, H.; Han, T. S.; Aoki, Takao; Sasaki, M.

    In: IEEE Photonics Journal, Vol. 7, No. 5, 7219366, 01.10.2015.

    Research output: Contribution to journalArticle

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