Cooperative-cognitive radio networks: Performance analysis of energy detection

This paper advances the key function of Cognitive Radio networks (CRNs) to detect the presence of primary (licensed) users for prevention of any interference. For this fact, there are several sensing techniques. In this paper, Energy detection based on cooperative relay technology is provided with the effect of free space path loss (FSPL). The performance of Energy detection technique is analyzed using single and multiple relays placed at different locations between the Transmitter (Primary User) and the Receiver (Cognitive center). Detection and False alarm Probabilities are also provided.