Research on Optimization for Cooperative Spectrum Sensing Based on Double Threshold Energy Detection

For double threshold energy detection of cooperative spectrum sensing in cognitive radio, which needs transfer much communication traffic and increases channel bandwidth and energy consumption of cognitive radio network, so an optimizational method is presented for the question in this paper. Depended on the detection probability of the network, while ensuring the performance of double threshold energy detection, the method search the best number of cognitive users participating cooperative detection to resolve the above question. Finally, the simulation results show the efficiency of this method.