ABSTRACT
This chapter provides the performance measures of spectrum sensing techniques into two broad categories. First, it analyzes the main metrics that test the performance of spectrum sensing. Second, the chapter focuses on testing the throughput of multiband cognitive radio networks (MB-CNRs). The receiver operating characteristic is probably the most common performance metric in spectrum sensing. It is simply a plot of the probability of detection versus the probability of false alarm. The main design parameters of MB-CRNs include sensing time, network's throughput, detection reliability, number of cooperating secondary users, number of sensed channels, power control, channel assignment, fairness. The chapter discusses the different trade-offs that need to be taken into account during the design and operating phases of sensing techniques. Integrating the cooperative communication paradigm with cognitive networks requires a trade-off between the spatial diversity achieved by cooperation and the expensive hardware requirements for sensing a very wideband spectrum.
