Performance analysis of multistage ATM switch with partially shared buffers under unbalanced traffic

The system delay and cell loss probability of a multistage ATM switch with partially shared buffers under nonuniform traffic are analyzed. The unbalanced traffic model is described by a vector of offered output traffic intensities in the switching network. By considering the path to each output port, we analyze the system delay and the cell loss probability based on the discrete time Markov chain. The results show that under nonuniform traffic, the system delay and cell loss probability of the hot-spot which has a high traffic intensity are severely degraded. The effects of hot-spot traffic on the performance of the output ports in the neighborhood of the hot-spot are also considered