Secrecy Analysis of Multi-user Half/Full-Duplex Wireless Bi-directional Relaying Network

Abstract

This study investigates the secrecy performance of the relay-assisted orthogonal frequency division multiplexing technique. The investigation utilizes a multi-user illegitimate half/full-duplex based bi-directional relaying, which is under the effect of a finite number of friendly jammers, system model. In reference to Monte-Carlo computer simulation results, the system model that operates in half-duplex mode achieves slightly better secrecy outage performance than the system model that operates in full-duplex mode. The results also show that the information leakage can be minimized by using friendly jammers, yet the friendly jammers degrade the system secrecy performance and result in system coding gain losses in high signal-to-noise ratios.