Multi-constraint physical topology design for all optical networks

In optical networks, physical topology design is critically important, and key underlying parameters to be considered are cost, power consumption, and resilience. Optimization of these parameters is a difficult problem to solve. In this paper, we present a new heuristic algorithm that successfully minimizes the cost and power consumption of an optical network without compromising its resilience. The algorithm's results were demonstrated against two topologies obtained from real-life optical networks covering Australia.