Many distributed multimedia applications exhibit exibility to uctuations in the network conditions. By trading o temporal and spatial quality to available bandwidth, or manipulating the playout time of continuous media in response to variations in delay, multimedia ows can keep an acceptable QoS level at the end systems. In this study, we present a new scalable scheme for adapting the transmission rate of multimedia applications to the congestion level of the network. The scheme is based on the end to end real time transport protocol (RTP). Using the proposed scheme, we investigate the e ciency of applying adaptation in utilizing network resources, reducing losses and the scalability of the scheme as well as that of the RTP protocol. The results obtained through simulations suggest the e ciency of the scheme in utilizing the network resources and decreasing the loss rates.
Paper REF , Vast majority of multimedia applications used currently in Internet based on UDP and RTP transport protocol.
End-To-End Quality of Service Control Using Adaptive Applications
In IFIP Fifth International Workshop on Quality of Service (IWQOS '97
Computer Science