A Double Time-Scale Rate Control Algorithm for Multimedia Real-Time Applications in Packet Switched Networks
分组网上多媒体实时业务双时间尺度速率控制算法

By taking into account the self-similarity nature of video traffic, in this paper we propose a receiver-driven double time-scale rate control (DTSRC) algorithm for multimedia real-time applications based on direct bandwidth estimation, rather than on loss rate or delay time of packets- In this algorithm, the data rate is considered not significantly varying in a long time scale, and the actual rate is estimated in a short time scale. If the sending rate falls outside the estimated rate range, the receiver notifies the transmitter to change its rate and the adaptive QoS control is achieved .Simulation results show that by using this algorithm the network bandwidth is utilized sufficiently, and the packet loss rate is quite low