In the existence of an eavesdropper, we study the secrecy outage probability (SOP) of the optimal relay selection (ORS) design by applying decode-and-forward (DnF) based on full-duplex relaying (FDR) mode. Our results reveal that the SOP of the suggested scheme can be considerably influenced on system performance by several parameters including the number of relays, the average signal-to-noise ratio (SNR) of eavesdropper links, transmit power and the average residual self-interference (SI) enforced on the relays.

optimal relay selection, secrecy outage probability, full-duplex.