Revenue maximisation in ATM networks using the CLP capability and buffer priority management

Abstract

We are interested in the gain in network revenue that could be obtained by using the cell loss priority (CLP) capability "optimally" (i.e., choosing an appropriate operating point and performing the right dimensioning) within the network, as compared with the case in which the user is not offered the CLP capability. We study the performance of an ATM multiplexer with two traffic classes with different QoS requirements, each class arriving as a batch Markovian arrival process. The buffer priority schemes adopted are PBS (partial buffer sharing) and PBS+push-out. We first obtain the engineering trade-off curves, between CLP=0 and CLP=1 traffic. Then we formulate a revenue optimisation problem, in which the constraints are the engineering trade-off function, and a simple model of the variation of CLP=1 demand with its price.