Joint PDF for SSC combiner output signal at two time instants in gamma fading channel

The probability density function (PDF) of the Switch and Stay Combiner (SSC) output signal at one time instant and joint probability density function of the SSC combiner output signal at two time instants in the presence of gamma fading will be determined in the closed form expressions. The results will be shown graphically for different variance values and decision threshold values. The bit error probability of digital telecommunication systems in the presence of Gamma fading can be calculated based on these results.