Security Concerns in Wireless Multicasting over Line-of-Sight Communication Channel

Abstract

In this paper, physical layer security over α – κ – μ fading distribution is investigated for a long distance wireless communication scheme. This evaluation is undertaken considering the existence of multiple receivers and eavesdroppers in the network. In order to diminish the possibility of wiretapping and to maintain perfect secrecy, it must be assured that no eavesdropper is able to overhear private information from the multicast receiving channels. This condition is ensured by deriving the novel closed-form expressions of probability of nonzero secrecy multicast capacity using multinomial theorem and the ergodic secrecy multicast capacity using the well known Meijer-G function. Afterwards, advanced numerical analysis of the obtained security matrices has been performed to exhibit how the physical parameters of α – κ – μ fading channel can be tuned to achieve maximum security. Finally, Monte-Carlo simulation is conducted in MATLAB environment to verify the accuracy of the derived expressions.