Admission Control for Multimedia Applications in Client-Pull Architectures
Silvia Hollfelder · 1997
Admission control mechanisms for time-critical requests in server-push architectures are only suitable if the required data rate is nearly constant for the duration of the service because resource reservation for applications with varying data requirements is not economic. Client-pull models are more appropriate to serve these kinds of applications. At the current state, there are no suitable mechanisms to support admission control for requests in client-pull architectures at the server. In this paper, some admission control policies are introduced, that are either based on specified server resources or that use adaptive admission control. Their goal is to improve the server utilization and the quality of service. 1 Motivation Distributed multimedia applications require the continuous data flow from the server to a client to avoid "glitches" at the presentation. In distributed applications clients compete for limited resources on the server. One way to manage the client requests is t...