Bahrani, S, Elmabrok, O, Currás Lorenzo, G et al. (1 more author) (2019) Wavelength assignment in quantum access networks with hybrid wireless-fiber links. Journal of the Optical Society of America B: Optical Physics, 36 (3). B99-B108. ISSN 0740-3224
Abstract
We propose a low-complexity near-optimal wavelength allocation technique for quantum key distribution access networks that rely on wavelength division multiple access. Such networks would allow users to send quantum and classical signals simultaneously on the same optical fiber infrastructure. Users can be connected to the access network via optical wireless or wired links. We account for the background noise present in the environment, as well as the Raman noise generated by classical channels, and calculate the secret key generation rate for quantum channels in the finite-key setting. This allows us to examine the feasibility of such systems in realistic scenarios when the secret key exchange needs to be achieved in a limited time scale. Our numerical results show that, by proper choice of system parameters for this noisy system, it is possible to exchange a secret key in tens of seconds. Moreover, our proposed algorithm can enhance the key rate of quantum channels, especially in high-noise and/or high-loss regimes of operation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Optical Society of America. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/M013472/1 EU - European Union GA 575662 |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Feb 2019 09:22 |
Last Modified: | 25 Jun 2023 21:32 |
Status: | Published |
Publisher: | Optical Society of America |
Identification Number: | 10.1364/JOSAB.36.000B99 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137212 |