P09/1 Performance Modelling of W-CDMA Networks Supporting Elastic and Adaptive Traffic

Abstract-We propose a new model, named Wideband Threshold Model (WTM) for the analysis of W-CDMA networks supporting elastic and adaptive traffic. Mobile users generate Poisson arriving calls that compete for the acceptance to a W-CDMA cell under the complete sharing policy. A newly arriving call can be accepted with one of several possible Quality-of-Service (QoS) requirements depending on the resource availability in the cell. We propose an approximate method, which is an extension of the Kaufman-Roberts algorithm, for the calculation of call blocking probabilities in the uplink direction. The accuracy of the proposed approximation is verified by simulation results