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

Abstract

This paper investigates the physical layer security of orthogonal frequency division multiplexing technique. The investigation considers a multi-user untrustworthy half/full-duplex based two-way wireless relay with a finite number of friendly jammers in the system model. According to Monte-Carlo simulation results, the system model that operates in full-duplex mode achieves slightly better secrecy outage performance than the system model that operates in half-duplex mode. The results also show that friendly jammers, besides minimizing the information leakage, degrade the system performance severely and cause system coding gain losses in high signal-to-noise ratios.

Keywords

• Physical Layer Security,OFDM,Two-Way Relay,Half/Full-Duplex Relay

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