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Performance Analysis of Energy Detection Based Cognitive Radio over GBK Fading Channel

A Generalised Bessel K fading distribution (GBK) has flexible parameters and own the capability to capture the multipath as well as shadowing effect. Moreover, it reduces to several well known multipath fading cases such as exponential distribution, generalised K distribution, generalised Gamma distribution, Half Gaussian, K distribution, Gamma distribution. In this work, our goal is to obtain analytical expression of average probability of detection (APD) in case of GBK fading channel and then to carry out the system performance analysis by applying square law selection (SLS) diversity scheme. Effect of different shaping parameters on system performance is also examined.