Cognitive radio multi-channel routing algorithm based on a modified PCNN

The core idea of cognitive radio technology is to realize the dynamic spectrum allocation and spectrum sharing through spectrum sensing and system learning. This paper sets the throughput and delays as the algorithm design target, puts forward a cognitive radio multi-channel routing algorithm based on a modified PCNN (MPCNN), which fully considered the multi-channel characteristic, through both the channel selection and routing selection, allowing the relatively idle channel to assume more data forwarding tasks, at the same time by reducing the channel interference to improve the network throughput, meanwhile avoid frequently spectrum switching on the busy channels. Thus the switching time delays and the back off delays will be reduced.