A new charging scheme for ATM based on QoS

✍ Scribed by B. Miah; E. M. Scharf; L. G. Cuthbert; J. A. Schormans

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 206 KB
• Volume: 15
• Category: Article
• ISSN: 1074-5351
• DOI: 10.1002/dac.535

✦ Synopsis

Abstract

This paper describes a new approach to charging for ATM called the ‘quality of service (QoS)‐based charging scheme’. In this scheme, traffic resources are distributed among buffers established to support combinations of ATM transfer capabilities and qualities of service. The buffers are dimensioned according to M/D/1/K and ND/D/1 queuing analysis to determine the buffer efficiency and quality of service requirements. This dimensioning provides the basis for fixing the price per unit of resource and time. The actual resource used by a connection is based on the volume of cells transmitted or peak cell rate allocation in combination with traffic shapers if appropriate. Shapers are also dimensioned using the quality of service parameters. Since the buffer efficiency is dependent on the quality of service requirements, customers of ATM networks buy quality of service. The actual price of a connection is also related to the amount of the resource purchased as well as the time of the day at which a connection is made, and the geographical location of the destination switch.

The QoS‐based charging scheme meets the requirements of customers and of network operators. Its performance compares very favourably with that of a number of well‐known existing ATM charging schemes. Copyright © 2002 John Wiley & Sons, Ltd.