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

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
CountryKorea, Republic of
CityJeju Island
Period16/10/1916/10/21

    Fingerprint

Keywords

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

ASJC Scopus subject areas

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

Cite this

Kim, Y., & Ko, Y-C. (2016). Cramer-Rao lower bound of channel estimator in continuous variable quantum key distribution. In 2016 International Conference on Information and Communication Technology Convergence, ICTC 2016 (pp. 678-680). [7763560] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICTC.2016.7763560