METHOD FOR CONTROLLING RANDOM ACCESS FOR THE EFFICIENT SENSING OF THE COOPERATIVE SPECTRUM IN A COGNITIVE RADIO-BASED FREQUENCY RESOURCE SHARING SYSTEM

摘要

One embodiment of the present invention to detect a signal for the terminal of the primary user at each sensing node provides a method for performing the spectrum sensing. The sensing method is performed to detect a signal for the terminal of the sensing node is the primary user, and performing a spectrum sensing; Based on the result of the spectrum sensing, the sensing node is a step of calculating the area of the test statistic; Based on the calculated area of the test statistic, the sensing node and calculating a transmission probability; Based on the calculated transmission probability, the sensing nodes may comprise transmitting the sensed information as a fusion center. At this time, the transmitted information based on the sensing, in the fusion center can be determined whether or not there is a signal for that terminal of the primary user.