Performance analysis of OBP based multimedia multibeam satellite networks

We consider a priority based service for traffic on the up and down links of satellite networks employing on-board processing. Real-time and jitter tolerant traffic are modulated onto a frame based flow structure with priority given to the real-time traffic. The real-time cell arrivals exceeding the frame capacity are lost while excess jitter tolerant traffic is stored. We develop an analytical technique to find the cell loss probability of the real-time traffic and the buffer overflow probability of the jitter tolerant traffic. The two sources of real-time traffic, voice and video, are each modeled as two-state Markov modulated Poisson processes (MMPP). The MMPP is also used to model jitter tolerant traffic. These results are applied to the up link of a satellite system