Virtual topology design of optical multihop networks via Hopfield neural network

In this paper, a new approach for designing the virtual topology of optical multihop networks has been developed. The considerations when designing an optical multihop network, such as wavelength assignment and traffic routing problem have been investigated. The objective function of designing virtual topology is the propagation delay and/or transmission delay of the optical multihop traffics. The optical networks with 8 nodes have been designed based on different types of traffic demands. The design approach is based on the Hopfield neural network (HNN) model. With this method, the optimal solutions for designing optical multihop network have been obtained. All the solutions are compared with results of the previous researchers and good agreement has been observed, thus establishing the validity of the method developed.