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Optimal planning of a quantum key distribution system

This work presents a novel formulation for the optimal planning of a quantum key distribution system in a multi-objective optimization context. Furthermore, a mathematical formulation of the problem is proposed followed by simulations with 5, 12, and 14 nodes using the National Science Foundation Network (NSFNET) as a test network to illustrate the resolution of the problem. The following objective functions were considered: Total cost (f1); number of links required (f2); total distance (f3); maximum distance (f4); load balancing (f5); and variance (f6). After presenting experimental results, the paper is concluded by outlining research proposals that would improve this work.