Multi-Hop Quantum Key Distribution with Passive Relays over Underwater Turbulence Channels

Amir Hossein Fahim Raouf, Majid Safari, Murat Uysal

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

Abstract

Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communications. In this paper, to overcome range limitations, we investigate a multi-hop underwater quantum key distribution (QKD) where intermediate nodes help the key distribution between the source and destination nodes. We consider deployment of passive-relays which simply redirect the qubits to the next relay node or receiver without any measurement. Based on nearfield analysis, we present the performance of relay-assisted QKD scheme in clear ocean under different atmospheric conditions. We further investigate the effect of system parameters (aperture size and detector field-of-view) on the achievable distance.

Original languageEnglish (US)
Title of host publication2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728167435
DOIs
StatePublished - Jul 20 2020
Event12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020 - Porto, Portugal
Duration: Jul 20 2020Jul 22 2020

Publication series

Name2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020

Conference

Conference12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
Country/TerritoryPortugal
CityPorto
Period7/20/207/22/20

Keywords

  • Underwater optics
  • multi-hop systems
  • quantum-key distribution

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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