A tariff model to charge IP services with guaranteed quality: effect of users' demand in a case study

In this paper, we consider a per-call, usage-based tariff model to charge for IP services with guaranteed quality. This model is based on the virtual delay, which is a quality of service (QoS) index that describes an improved IP service provided by a network domain. We show how to compute the virtual delay, and how to make it dependent on the service demand. Then, we demonstrate the effectiveness of our tariff model to tune revenues, blocking probability, and resource utilization in a meaningful application scenario. Our goal is to give some directions for network resource dimensioning and pricing purposes, which depend on the service demand.