Distributed channel allocation algorithm based on classifying of services and channels in cognitive radio networks
Xiaohong Chen · Jisuanji gongcheng yu sheji · 2012
In order to support more cognitive services and improve the performance of cognitive systems,an improved distributed channel allocation algorithm based on classifying of cognitive services and channels is proposed.The algorithm classified the cognitive users' services requirements and available channels to different levels according to data rate.To satisfy more cognitive services,cognitive users who have the smallest number of interference neighbors have the priority to get the corresponding level spectrum resources.Simulation results show that the algorithm can meet more cognitive services' requirements and is consistent with theoretical analysis results.