Cramer-Rao lower bound of channel estimator in continuous variable quantum key distribution

Youngjun Kim, Young-Chai Ko

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    The channel estimation is one of the essential components to make the long distance transmission of continuous variable quantum key distribution (CV-QKD). In this paper we provide the Cramer-Rao lower bound (CRLB) of the channel estimator, which is the minimum variance that an estimator can achieve. We compare CRLB with the channel transmission parameter estimator proposed in [15] for long distance CV-QKD systems.

    Original languageEnglish
    Title of host publication2016 International Conference on Information and Communication Technology Convergence, ICTC 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages678-680
    Number of pages3
    ISBN (Electronic)9781509013258
    DOIs
    Publication statusPublished - 2016 Nov 30
    Event2016 International Conference on Information and Communication Technology Convergence, ICTC 2016 - Jeju Island, Korea, Republic of
    Duration: 2016 Oct 192016 Oct 21

    Other

    Other2016 International Conference on Information and Communication Technology Convergence, ICTC 2016
    Country/TerritoryKorea, Republic of
    CityJeju Island
    Period16/10/1916/10/21

    Keywords

    • Channel Estimator
    • Coherent state
    • CRLB
    • CV-QKD
    • GG02
    • Squeezed state

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Hardware and Architecture
    • Signal Processing

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