By D. J. Songhurst
This booklet proposes that usage-based charging schemes are necessary to generate the incentives useful for effective operation of multiservice networks. The fast improvement of community know-how is permitting subtle new prone and purposes which call for new charging versions. an analogous expertise presents the skill to function the proper charging schemes. a number of the paintings performed within the eu collaborative venture CAhMAN (Charging and Accounting Schemes in Multiservice ATM Networks). This undertaking mixed functionality and financial types of community source utilization and cutomer software to build basic yet powerful charging schemes which have been applied and trialled in a complicated administration platform.
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Additional resources for Charging communication networks : from theory to practice
Class U is the 'unspecified' class. Neither delay nor loss have specified limitations for connections of this class. 356 defines appropriate combinations of ATC and QoS class (marked o) as follows: 1: stringent 2: tolerant 3: bi-level U: unspecified DBR o o o SBR o o o o ABT o o ABR o o Quality of service, resource usage, and charging In practice there are no fixed rules to determine which services and applications will use each ATC. For the user there is a trade-off between cost and quality of service.
MODELS FOR CHARGING SCHEMES 25 The proposed solution is to construct tariffs that depend both on static parameters that are policed and on dynamic parameters that are measured. The tariffs offered to users are obtained from bounding approximations to the effective bandwidth function. Appendix A describes a simple charging mechanism where charges are linear combinations of the duration and volume of the connection. Users can minimise their charge by choosing tariffs corresponding to their expected mean rates.
User/network interface The user/network interface must be able to show tariff information to users in association with traffic contract information, and enable the user to make sensible choices of tariff and traffic contract. 6. IMPLEMENTATION AND USER ISSUES 35 tiate tariff or traffic contract parameters during connections. The abc scheme uses linear functions of time and volume and thus enables the adoption of a standard form of tariff comprising the three charging parameters a, b, c. This in turn allows the design of a simple user/network interface for ATM-level charging that is common to all ATCs.
Charging communication networks : from theory to practice by D. J. Songhurst