Generalized MGF based secrecy performance analysis over Fisher-Snedecor F composite fading channels

Abstract

In this paper, we analyze the physical layer security over Fisher-Snedecor F (F-S F) composite fading model and develop the way of evaluating physical layer security based on generalized moment generating function (MGF). First, we derive the closed-form formulas for the generalized moment generating function (MGF) of the F-S F distribution. Then, we analyze the probability of successful secure transmission over F-S F composite fading channels in single-input single-output (SISO). Moreover, we generalize the wiretap channel to multiple-input single-output (MISO) wiretap channel with transmit antenna selection and develop the generalized MGF based analysis of physical layer security. Extensive numerical results are presented to validate the accuracy of our analytical framework.