  Analysis of the average binary error probabilities (ABEP) and average
capacity (AC) of wireless communications systems over generalized fading
channels have been considered separately in the past. This paper introduces a
novel moment generating function (MGF)-based \emph{unified expression} for the
ABEP and AC of single and multiple link communication with maximal ratio
combining. In addition, this paper proposes the hyper-Fox's H fading model as a
unified fading distribution of a majority of the well-known generalized fading
models. As such, we offer a generic unified performance expression that can be
easily calculated and that is applicable to a wide variety of fading scenarios.
The mathematical formalism is illustrated with some selected numerical examples
that validate the correctness of our newly derived results.
