Secrecy performance analysis of land mobile satellite communication systems over Shadowed-Rician fading channels

This paper investigates the secrecy performance of a land mobile satellite (LMS) communication system, where a satellite communicates with a legitimate receiver in the presence of an eavesdropper who wants to eavesdrop the confidential message. By using the Meijer-G functions, the analytical expressions for the probability of non-zero secrecy capacity and the exact secrecy outage probability are first obtained, which provides an efficient means to evaluate the impact of various system parameters on the secrecy performance. Furthermore, to gain further insights, simple asymptotic formula of secrecy outage probability at high signal-to-noise ratio (SNR) is presented to reveal the secrecy diversity order and code gain of the considered system. Finally, computer simulations are carried out to validate the theoretical results.