Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance

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

Abstract

To overcome the limitations of both discrete variable (DV) and continuous variable (CV) QKD protocols, in this paper, a hybrid DV-CV QKD protocol is proposed. In the proposed hybrid QKD protocol, Alice simultaneously performs discrete modulation (DM)-based encoding for CV-QKD subsystem and time-phase encoding for DV-QKD on a transmitter side. On receiver side, Bob employs a 1:2 optical space switch to select either DV-QKD receiver or CV-QKD receiver with the optimized probability of selection. Bob further performs the classical postprocessing applied to both subsystems so that resulting joint secure key is derived from both subsystems. The proposed hybrid QKD protocol significantly outperforms previously introduced both Gaussian modulation (GM)- and DM-based CV-QKD protocols as well as DV-QKD protocols in terms of both secret-key rate (SKR) and achievable transmission distance.

Original languageEnglish (US)
Title of host publication21st International Conference on Transparent Optical Networks, ICTON 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781728127798
DOIs
StatePublished - Jul 2019
Event21st International Conference on Transparent Optical Networks, ICTON 2019 - Angers, France
Duration: Jul 9 2019Jul 13 2019

Publication series

NameInternational Conference on Transparent Optical Networks
Volume2019-July
ISSN (Electronic)2162-7339

Conference

Conference21st International Conference on Transparent Optical Networks, ICTON 2019
CountryFrance
CityAngers
Period7/9/197/13/19

Fingerprint

Modulation
Transmitters
Switches

Keywords

  • Continuous variable (CV)-QKD
  • Discrete modulation-based protocols
  • Discrete variable (DV)-QKD
  • Quantum key distribution (QKD)
  • Weak coherent state-based CV-QKD protocols

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Djordjevic, I. B. (2019). Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance. In 21st International Conference on Transparent Optical Networks, ICTON 2019 [8840467] (International Conference on Transparent Optical Networks; Vol. 2019-July). IEEE Computer Society. https://doi.org/10.1109/ICTON.2019.8840467

Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance. / Djordjevic, Ivan B.

21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE Computer Society, 2019. 8840467 (International Conference on Transparent Optical Networks; Vol. 2019-July).

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

Djordjevic, IB 2019, Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance. in 21st International Conference on Transparent Optical Networks, ICTON 2019., 8840467, International Conference on Transparent Optical Networks, vol. 2019-July, IEEE Computer Society, 21st International Conference on Transparent Optical Networks, ICTON 2019, Angers, France, 7/9/19. https://doi.org/10.1109/ICTON.2019.8840467
Djordjevic IB. Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance. In 21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE Computer Society. 2019. 8840467. (International Conference on Transparent Optical Networks). https://doi.org/10.1109/ICTON.2019.8840467
Djordjevic, Ivan B. / Hybrid DV-CV QKD outperforming existing QKD protocols in terms of secret-key rate and achievable distance. 21st International Conference on Transparent Optical Networks, ICTON 2019. IEEE Computer Society, 2019. (International Conference on Transparent Optical Networks).
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