Jitter approximation and QoS requirement

Today, One of the most important performance measures in the new burst traffic occurs to 3G and 4G systems is the End-to-End jitter. However, in order to study and analyze Jitter ,many works have been devoted to estimate and evaluate this parameter. In this paper, an analytical approximation for jitter is presented. In one node case, we found that the jitter can be approximated by the average arrival rate. We found value of the average arrival rate required to predict the expected QoS for VoIP. Finally , a very simple analytical approximation forThe end-to-end jitter for a tagged flow passing through N nodes is presented, We conclude that jitter performance depend strongly on trafficcorrelations Keywords—QoS metrics; Analytical Jitter Model; VoIP ; end-toend performance; traffic correlation