Analysis of amplify and forward technique to improve secrecy rate in multi-hop relaying system

In this paper, Two cooperative techniques Amplify and Forward (AF) and Decode and Forward (DF) have been analyzed in multi-hop relay network with full duplex (FDRs) and half duplex relays (HDRs). The performance analysis has been done in terms of secrecy rate for both AF and DF. Numerical results show that AF with FDRs and HDRs improves the secrecy rate over the DF. AF technique outperforms DF by 44% with FDRs and 40% with HDRs.