Novel Queueing Model for Multimedia over Downlink in 3.5G Wireless Network

In this paper, the model for multimedia transmission over downlink in 3.5G wireless network in terms of a queue with two priority classes, one of which has time priority while the another has space priority, is formulated. The input is described by the Batch Marked Markov Arrival Process (BMMAP ). Service time distributions are of PH (phase) type dependent on the class of a customer. The bu#er is finite, but the customers of a class having higher priority for taking into the service from a bu#er (time priority) can occupy only a part of this bu#er. Queueing system's behavior is described in terms of multi-dimensional continuous time skip-free to the left Markov chain. It allows to exploit an e#ective algorithm for calculation of the stationary distribution of the queueing system. Loss probability for customers of both classes is calculated