Secrecy Outage Performance of GSC-Based DF-Relay Systems Over Nakagami Fading Channels

抄録

This work analyzes the secrecy performance of a generalized selection combining (GSC)-based decode and forward (DF)-relay system over Nakagami fading channels. This study also investigates transmit antenna selection (TAS) for secrecy improvement in the GSC-based DF-relay system. This work derives the new cumulative distribution function (CDF) expressions of receive signal to noise ratio (SNR) for the proposed system. Also, this study derives the new expressions of the proposed system for the secrecy performance. Through asymptotic approach, we confirm that the sharpness of secrecy performance is proportional to the number of transmit and receive antennas as well as fading index for the proposed GSC-based DF-relay system with TAS.