Cooperative Spectrum Sensing Optimization Algorithm of Maximum System Utility

The technology of cooperation spectrum sensing can improve the system performance through the co-operation detection of multiple users. However, it consumes a lot of system resources with an increase in the number of users involved in sensing. In order to balance the sense performance and efficiency of system resource, taking into account the sense overhead and system efficiency, cooperative spectrum sensing optimization algorithm which has based maximum system utility was proposed. Simulation results show that in the context to meet a given system detection probability, there is a corresponding number of sensing radio and sensing length to maximum cognitive system throughput.