Physical-Layer Security for DF Two-Way Dual-Hop Cooperative Wireless Networks over Nakagami-m Fading Channels

摘要

Cooperative communication is a new technique that enables single antenna devices to share their antennas and help other nodes in relaying their signals. Hence, higher spatial diversity, reduced power consumption and improved reception reliability are achieved. In this paper, two way dual-hop cooperative network with source and jammer for decode and forward relaying scheme and under physical layer security is analyzed and investigated, where half-duplex mode and Nakagami-m fading channels are employed. The secrecy outage probability and the correct computation probability for single relay are derived to evaluate the secrecy performance of the system. Theoretical results are given for the derived expressions.