Performance Analysis of Dual-Hop systems with Fixed-Gain Relays over Generalized 17-J-L Fading Channels

The performance of dual-hop wireless communica­ tion systems with semi-blind amplify-and-forward (A F) relays over independent, but not necessarily identically distributed, 1]-/1> fading channels is investigated. This performance is studied based on the evaluation of the outage probability, average bit-error probability (ABEP), and average end-to-end received signal-to-noise ratio (SNR). To this end, novel expressions for the outage probability and average end-to-end received SNR are derived. Moreover, an expression for end-to-end SNR of the probability density func.tion (PDF) is derived. Based on the derived PDF, we then obtam a novel expression for the generalized moments of the received SNR.. We conduct extensive simulation in order to study the effect of the fading parameters (i.e., 1] and /1» on the system performance. Our findings show that, in contrast to the fading parameter . "1' /1> has a significant impact on the system performance. In addItIon, simulation results demonstrate that, the derived expressions match very well with the numerical simulations.