Abstract:

Frequency hopping (FH) radios operating in close proximity to each other will generate severe cosite interference, so it is necessary to study the frequency assignment in FH networks with cosite constraints. The constraints including constraints within subnets, constraints between subnets and special constraints of synchronous signals are analyzed. Different weights are adopted based on the significance of the constraints, and the cost function is set up. Based on the simulated annealing algorithm, the method of frequency assignment in the FH networks with cosite constraints is proposed. The computing results indicate the novel method can insure the establishment of the synchronization and improve the electro-magnetic compatibility, so the method can solve settle frequency assignment problem effectively in frequency hopping (FH) networks with cosite constraints.