Secrecy performance analysis of AF relaying with relay selection scheme over Nakagami‐m fading channels

Abstract

This paper investigates the secrecy outage probability (SOP) and intercept behavior for the amplify-and-forward network over Nakagami-m fading channels. Relay selection schemes are evaluated. The optimal and suboptimal criterions require the instantaneous and statistical channel state information of the eavesdroppers' channels, respectively. The enhanced 2-hop criterion needs the additional information of the target secrecy rate for relay selection. Theoretical analysis reveals that the diversity order of the SOP is dominated by the minimum fading figures of the source-relay and relay-destination channels, while that of the intercept probability depends on the fading figure of the relay-destination channel. In the multirelay scenario, the optimal, suboptimal, and enhanced 2-hop scheme achieve the same diversity orders of the SOP. For the intercept probability, the optimal and second-hop relay selection schemes provide the same diversity order, while the diversity orders of the suboptimal and enhanced 2-hop schemes are the same. Simulation results finally substantiate the accuracy of the theoretical analysis.KEYWORDS amplify-and-forward, eavesdropper, intercept probability, Nakagami-m fading, secrecy outage probability

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

“…17 The optimal resource allocation problem to boost the secrecy rate is analyzed for a jamming aided amplify-and-forward (AF) cooperative relay system under eavesdropping conditions. 18 Chu 19 examined SOP and intercept probability of AF relay-based cooperative network under multi eavesdropper scenario. The secrecy performance of MISO and SISO NOMA networks with various transmit antenna selection (TAS) strategies is examined, and the closed-form expression for SOP has been derived and compared with traditional space time transmission (STT) scheme in Lei et al 20 Next, a max-min TAS approach for MIMO-NOMA network in the existence of malicious eavesdroppers has been proposed to increase the secrecy performance.…”

Analysis and comparison of different cooperative cellular networks

“…These networks have got particular consideration due to its aptitude to achieve high coverage area and signal strength . Therefore, an expression for the secrecy outage probability for amplify and forward (AF) relay network over Nakagami‐m fading channels is introduced . In addition, the performance of decode and forward relaying (DFR) over independent, asymmetrical, and generalized fading channels is examined .…”

Analysis and Comparison of Different Cooperative Cellular Networks

“…These networks have received particular consideration due to its aptitude to increase the coverage area and signal strength [5]. Therefore, an expression for the secrecy outage probability for Amplify and Forward (AF) relay network over Nakagami-m fading channels is introduced [6]. In addition, the performance of Decode and Forward (DF) relaying over an independent, asymmetrical and generalized fading channels is analyzed [7].…”