Performance analysis for partially observed communication networks

We consider the performance analysis for a FIFO queue with i.i.d. service time and two independent arrival streams of "observed" and "unobserved" packets. The arrivals of unobserved packets are Poisson with a known rate. Based on the idea of critical path, the modeling and perturbation analysis method is proposed for the queue. Furthermore, the performance measure, end-to-end delay (D) and probability of cell loss P/sub loss/ are estimated, and the trade-off between D and P/sub loss/ is acquired.