Bandwidth allocation based on declared UPC parameters in ATMnetworks

摘要

We present a new method of calculating the required bandwidth fornATM connections. We first develop analytical models for bandwidthnallocation of constant bit rate (CBR) and variable bit rate (VBR)nservices based on the declared usage parameter control (UPC) parameters.nWe then derive the closed form expressions for both service classes, andnwe also provide a numerical analysis in which there exists a closenrelationship between the quality of service (QoS) parameters (cell lossnand delay parameters) and network resource (link capacity and buffernsize). The closed form expressions can be used for a simple butnefficient bandwidth allocation scheme for the call admission controln(CAC) function