Performance of MPSK in satellite mobile channels with combined ionospheric scintillation and flat fading channels

The performance of MPSK in combined scintillation and flat multipath fading channels for satellite mobile communication system is derived in this paper. The probability density function (PDF) of combined scintillation and small-scale fading signal is first expressed in terms of instantaneous signal-to-noise ratio (SNR) per bit, then average bit error rate of MPSK is computed. Simulation results are shown to follow the derived theoretical results closely.