远程教学中的实时媒体拥塞控制策略研究

Research on real-time media congestion control strategy in distance education

远程教学是建立在信息技术基础上的一种新型教学方式。尽管远程教学能够对网络中的资源分配保持合理性,但是,多媒体通信应该达到完全的QoS。对远程教学中实时媒体的信息传输进行了研究,提出了一个基于窗口数据报拥塞控制协议的方案。实验结果表明,校正基于估计平均往返时间的运行时拥塞控制算法是可行的。

The distance education is a kind of new teaching method based on information technique. Although distance education can keep rationa＇lity to the resource allocation in the network, multimedia communications should achieve adequate quality ofservice （QoS）. A research on read-time media information communication in distance education is made, and a modified version of the window-based datagram congestion control protocol is proposed. The result of the experiment indicated that adjusted at run-time based on the estimated mean round-trip time is feasible.