Accurate performance evaluation of semi-blind dual-hop wireless relay systems under generalized fading

In current cooperative communication systems, a relay terminal is very often used as an intermediate node. Introducing this node may degrade or improve the overall system performance, depending on the power imbalance between the hops. In this paper a unified framework to estimate the performance of dual-hop fixed-gain relay system when each hop is subjected to κ-μ shadowed fading is presented. Specifically, new closed form expressions are derived for the outage probability, the generalized moments, the moment generating function (MGF), and the ergodic capacity. This unified analytical framework is obtained in terms of well-known and easily computable functions. The accuracy of the analytical results is verified through computer simulations.