Multidimensional Resource Allocation in Quantum Key Distribution-Integrated Optical Networks

Le résumé fourni par la source

With the rapid development of optical networks and the increasing amount of data transmission, information security has become a critical concern. Quantum key distribution can theoretically provide security for data encryption key distribution, and its integration into optical networks can enhance overall security. To reduce deployment costs, Wavelength Division Multiplexing is used to combine quantum and classical signals. However, limited wavelength resource necessitate the use of Time Division Multiplexing. How to efficiently allocate the multidimensional resources, such as wavelength, time slots, and encryption keys, has become a key issue in the design of secure optical networks. This paper proposes a Security-Level-based routing, wavelength, and time slot assignment strategy for optical networks. To evaluate the effectiveness of the proposed strategy, we introduce a new metric called Average Key Consumption. This metric allows us to assess key usage efficiency and network performance. We analyze the impact of different Average Key Consumption values on network resource allocation. Simulation results demonstrate that the Security-Level-based routing, wavelength, and time slot assignment strategy outperforms other strategies in handling high security demands.

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