Physical-Layer Security for Cooperative Wireless Networks over Alpha-Mu Fading Channels

A novel method called cooperative communication allows devices with a single antenna to share their antennae and assist other nodes in signal relaying. Thus, enhanced reception reliability, lower power usage, and increased spatial diversity are attained. This paper examines and analyzes a two-way, dual-hop cooperative network that uses α-μ fading channels and half-duplex mode, with a source and jammer for decode and forward relaying method, all while maintaining physical layer security. The system's secrecy performance is assessed by deriving the secrecy outage probability for a single relay. For the derived expression, theoretical results are provided.

I. Introduction

Due to its benefits, cooperative networks have been included by researchers and developers into communication systems. These include higher throughput and spatial diversity as well as lower latency, power consumption, and interference [1]–[12]. A single source, single destination, and multiple relays with DF or AF relying schemes make up the two-hop one-way cooperative communication system that was proposed in [13], the best relay was selected using a variety of criteria, including partial relay and opportunistic relay selection [14]–[28]. Only the source-relay SNR is taken into account in partial relay selection; however, the two hubs' SNR is taken into account in opportunistic relay selection, which results in improved performance.