An Efficient Routing Protocol for Quantum Key Distribution Networks
- URL: http://arxiv.org/abs/2204.13918v2
- Date: Tue, 5 Jul 2022 05:13:44 GMT
- Title: An Efficient Routing Protocol for Quantum Key Distribution Networks
- Authors: Jia-Meng Yao, Ya-Xing Wang, Qiong Li, Hao-Kun Mao, Ahmed A.Abd
El-Latif, Nan Chen
- Abstract summary: Quantum key distribution (QKD) can provide point-to-point information-theoretic secure key services for two connected users.
QOLSR considerably improves quantum key utilization in QKD networks through link-state awareness and path optimization.
- Score: 9.203625000707856
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum key distribution (QKD) can provide point-to-point
information-theoretic secure key services for two connected users. In fact, the
development of QKD networks needs more focus from the scientific community in
order to broaden the service scale of QKD technology to deliver end-to-end
secure key services. Of course, some recent efforts have been made to develop
secure communication protocols based on QKD. However, due to the limited key
generation capability of QKD devices, high quantum secure key utilization is
the major concern for QKD networks. Since traditional routing techniques do not
account for the state of quantum secure keys on links, applying them in QKD
networks directly will result in underutilization of quantum secure keys.
Therefore, an efficient routing protocol for QKD networks, especially for
large-scale QKD networks, is desperately needed. In this study, an efficient
routing protocol based on optimized link-state routing, namely QOLSR, is
proposed for QKD networks. QOLSR considerably improves quantum key utilization
in QKD networks through link-state awareness and path optimization. Simulation
results demonstrate the validity and efficiency of the proposed QOLSR routing
protocol. Most importantly, with the growth of communication traffic, the
benefit becomes even more apparent.
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