Throughput optimization of cognitive radio networks based on sequential cooperative sensing

Under the constraint that the primary users were sufficiently protected,throughput optimization problem was studied in cognitive radio networks based on sequential cooperative spectrum sensing.Throughput optimization problem was established,and was analyzed by optimization theory.Furthermore,a searching method was proposed to obtain the optimal throughput and the corresponding optimal parameters.The simulation results show that the optimal throughput exists in the cognitive radio networks based on sequential cooperative sensing,and the optimal throughput decreases as the transmission overhead increases.