基于漏桶算法的自适应多媒体同步控制机制

Adaptive control mechanism of multimedia synchronization based on leak-bucket algorithm

针对分组交换网中多媒体通信的动态特性,借助实时传输协议(RTP),在接收端对网络延时进行了估计,并及时了解网络负载的变化,进而根据漏桶算法,自适应调节和维持多媒体同步,以保证多媒体服务质量.仿真实验表明,这种同步控制机制能够适应不同的网络环境,效果良好.

With the taking into consideration of the dynamical characteristics of multimedia communication in packetswitch network, delay estimation is performed at the receiving site during the session to learn the change of the network load with the help of RTP. The playback schedule of the realtime data can then be adapted to maintain the multimedia synchronization and ensure of the Quality of Services according to the leakbucket algorithm. It is shown by simulation that this approach is effective in various networks.