Equalization of congestion probabilities in a W-CDMA cell supporting calls of finite sources with interference cancellation

In this paper, we consider a multirate teletraffic loss model for the calculation of congestion probabilities in a Wideband Code Division Multiple Access (W-CDMA) cell that utilizes the Bandwidth Reservation (BR) policy and supports calls generated by a finite number of users. The BR policy is used particularly to equalize congestion probabilities among calls of different service-classes. In the proposed model we consider multiple access interference, the notion of local blocking, user´s activity and interference cancellation. We show that the calculation of congestion probabilities is based on approximate but recursive formulas, whose accuracy is verified through simulation and found to be quite satisfactory.