Performance of two Algorithms of Energy Detection in Cooperative-Cognitive Networks with Path Loss Effects over AWGN Channel

Abstract

This paper presents the comparative performance analysis of two energy detection algorithms, single and double threshold energy detection, in the Cooperative-Cognitive Networks. Path loss effect has been considered in order to measure the efficiency of the system in terms of detection accuracy interference with Primary User (PU). The two algorithms are analysed using single and multiple relays at different positions from PU. The path loss exponent is considered as 3 in order to get degenerative environment. We have used Monte Carlo Simulation for our proposed double threshold technique by considering AWGN channel and Maximal Ratio Combining (MRC) at the receiver. The simulation results are presented for the Probability of Detection (Pd), Collision probability (Pc) and unavailable probability (Pna) by considering both the algorithms.