Supporting Multimedia Service Polymorphism in Dynamic and Heterogeneous Environments
Dongyan Xu, Klara Nahrstedt · 2000
Future multimedia services are expected to be available anytime, anywhere, and by using any computing device. However, clients of a multimedia service may vary significantly in their processing capability and network connectivity. In addition, even between the same multimedia service provider and client, there may be dynamic variation in end-to-end resource availability. In such a dynamic and heterogeneous environment, the challenge in multimedia service is to provide each client with satisfactory Quality of Service (QoS), under the constraint of current end-to-end resource availability. Many existing QoS adaptation techniques are very service-specific, and targets only specific types of critical resources. In this paper, we present ServiPoly , an enabling framework for multimedia service provision in dynamic and heterogeneous environments. Instead of providing a specific technique, ServiPoly provides uniform programming interface, architecture, and runtime support that integrate and ...