A general traffic and queueing delay model for 3G wireless packet networks

Abstract

This paper considers traffic modelling and queueing delay estimation of different 3G packet network services. First, a general traffic model for conversational (voice) and streaming (video) services is presented. This model is subdivided into three levels: session level, burst level, and packet level. Based on the proposed model, the statistical behavior of the queueing delay is studied. It is shown that the queueing delay corresponding to voice and video streaming services follows an exponential distribution. Analytical modelling of the probability density function (PDF) of the queueing delay being untractable, we resort to simulated data and provide simple mathematical formulation of the different parameters that characterize the density functions of the different services. Indeed, we present useful equations which could be utilized, directly in network dimensioning, as a reference to satisfy a certain quality of service (QoS) and in the design of radio resource management algorithms. © Springer-Verlag.