Secrecy Capacity of a Rayleigh Fading Channel under Jamming Signal

Abstract

In this project work, we deal with physical layer security of a wireless network where the secrecy capacity of the link is considered as the parameter. The impact of received signal to noise ratio (SNR) of legitimate/authorized user, the number of transmitting/receiving antenna elements of multiple input multiple output (MIMO) along with antenna elements of eavesdropper, selection of transmitting antenna element under transmit antenna selection (TAS) scheme are also contemplated. Next the outage probability of the network is determined taking SNR of valid user, number of antenna elements of both transmitter of eavesdropper and threshold value of different of channel capacity as the parameters. Finally, the impact of jammer on normalized channel capacity and outage probability of eavesdropper are analyzed taking signal-to-interference ratio (SIR) of the channel as the ratio of two random variables of fading channel.