Hence, from Equations 3 and 4, the closed-form expression for probability of detection over AWGN channel can be obtained from [9] as (6)Pd,i=Qm(2γi,λ) where Qm (a, b) refers to the generalized Marcum Q-function defined: (7)Qm(a,b)=1am−1∫b∞xme−x2+a22Im−1(ax)dx...