Multi-hop quantum key distribution with passive relays over underwater turbulence channels
Type :
Conference paper
Publication Status :
Published
Access :
restricedAccess
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.
Source :
2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)
Date :
2020
Publisher :
IEEE
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