【摘要】 介绍了一种基于流转发代理的多媒体通信系统的设计方法,并结合因特网中多端对多端通信体系结构的多媒体通信系统模型下的用户扩展问题,提出了一种基于多媒体流转发代理的拥塞控制新机制,通过拥塞避免的方法构造多媒体流转发代理树,构造完成后,系统在运行过程中出现的网络拥塞状况,采用转发树中QoS协商、负载平衡和负载丢弃的方法,调整流量、调整带宽占有等来使总的多媒体流适应带宽的要求,从而达到消除拥塞的目的,该方法很好地解决了转发代理树中的QoS控制问题,最大限度地满足了所能提供服务用户的QoS要求。更多还原

【Abstract】 This paper introduces the design method of a multimedia communication based on the re-transport agents.,and combing the user expansion problem regarding the end-to-end architectural models of multimedia communication system,a new congestion control mechanism is also suggested on the basis of re-transport agents technique: first,build the re-transport agents tree by using the method of congestion avoidance;then,adjust and control the rate of data streams and the occupation of network bandwidth with respect to the present network bandwidth to avoid network congestion by balancing some loads and losing some loads,and QoS negotiation in re-transport agents tree.The method solves the control problem of QoS in the re-transport agents tree and meet most the QoS requirements of multimedia communication.更多还原