Abstract: Due to the excessive number of path hops and the large distance in the optical network, it is more difficult to find the available spectrum resources, which leads to lower dynamic spectrum utilization, less network benefits and higher blocking rate in the optical network. Therefore, a dynamic spectrum allocation method based on frog jumping game optimization algorithm is proposed for the optical network. The OHM(Optimized Link State Routing Protocol using the Highway Model ) routing algorithm is used to select the candidate path that corresponds to the service request and meets the minimum hops and the highest modulation level. The available spectrum resources are found. According to the obtained spectrum resources in the optical network, the minimum of the maximum frequency slot number in all links is used as the target to construct the objective function of the dynamic spectrum allocation of the optical network. Under the constraint conditions, the frog jump game optimization algorithm is used to solve the objective function. The obtained solution is the optimal result of dynamic spectrum allocation in optical networks. The experimental results show that the proposed method has low blocking rate, high spectrum utilization and high network revenue, and is practical. 

Key words: frog leap game optimization algorithm, optimized link state routing protocol using the highway model (OHM) routing algorithm, optical network, spectrum allocation, bandwidth blocking