This paper presents the developed MATLABbased simulation environment used to evaluate the cooperative spectrum sensing in the simulated channel conditions. Four different channel models can be set up between the primary user and individual secondary users: PedA, PedB, VehA and VehB models. Two types of detectors -the energy detector and the Kolmogorov-Smirnov-based statistical detector have been implemented and then used for the evaluation on the two types of transmitted signals -the analogue FM signal and the digital 8PSK signal. The simulator has also been used in order to demonstrate the effectiveness of the cooperative approach over the spectrum sensing via the single devices.

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