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An Integrated Analytical Model for Computation and Comparison of the Throughputs of the UMTS/HSDPA User Equipment Categories

Tien Van Do, Ram Chakka, Peter G. Harrison

Conference or Workshop Paper
MSWiM 2007, Proceedings of the 10th ACM Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems, Crete, October 22-26, 2007
October, 2007
DOI 10.1145/1298126.1298137

A new queuing model is proposed for the performance evaluation of the High Speed Downlink Packet Access (HSDPA) protocol, with respect to a specified user, in UMTS networks. The model is based on the recently evolved MM/Sum_k CPP_k/GE/c/L G-queue, in which the number of servers allocated to a specified user is subjected to vary according to the physical channel allocation policy. This queue is, essentially, an important variant of the so-called Sigma queuing model, and it is able to capture most of the features of HSDPA wireless communications, such as traffic-burstiness, channel fading, channel allocation policy, etc., in an integrated way. Numerical results for the performance of HSDPA with respect to a specified user are obtained, and different HSDPA user equipment categories are compared with respect to their computed model throughputs.

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