Adaptive Control Framework and Its Applications in Real-Time Multimedia Service on the Internet Architecture

摘要

The concept of controlled resource sharing and dynamic quality of service (QoS) on the next generation Internet has attracted much attention recently. It is suggested that, by imposing real-time revision of shared resource allocated to indi- vidual media streams or data flows according to user/application QoS demand and resource availability, more balanced and effi- cient multimedia services can be provided. In this paper, we present an Adaptive Control Framework (ACF), which is devel- oped for controlled resource sharing and dynamic QoS in real- time multimedia service. We discuss main elements of ACF in- cluding 1) Control schemes applicable in the framework, and 2) Control mechanisms used in ACF. It is clearly shown in this pa- per that, with control schemes and mechanisms incorporated in ACF and supportive algorithms and protocols for ACF appli- cations on the Internet. more flexible service and better overall performance in terms of packet loss, latency, signal-noise ratio and re-synchronization delay, can be offered.