Analysis of the Early Packet Discard with per-VC Queueing Mechanism

The Early Packet Discard (EPD) with per-VC Queueing mechanism is a packet discard scheme proposed in the literature to improve EPD performance in terms of fairness. This paper develops an analytical approximation model for evaluating the performance of the mechanism at a single node. As illustrated in the paper by numerical examples, the model allows the study of the evolution of performance measures such as buuer occupation, packet discard ratio and cell loss ratio when parameters of the input traac or of the discarding mechanism are changed.