流媒体自适应传输控制的研究

Research on Streaming Media and Adaptive Transmission Control

流媒体是指多媒体数据流在网络上一边传输一边播放的一种多媒体通信服务。提供尽力而为服务的Internet不能为流媒体保证网络带宽、传输延迟、分组丢失以及分组错误等,而自适应传输控制机制能够提高流媒体服务的传输服务质量和传输服务的公平性。本文探讨流媒体自适应传输控制技术所涉及的各个方面,包括拥塞控制、质量自适应和错误控制。

With the explosive growth of the Internet, a lot of new multimedia communication applications on Internet emerged. Streaming media is a continuous media transmitted in real-time and streaming mode over the network. However, the current best-effort Internet does not offer any quality of service （QoS） guarantees to real-time multimedia. This paper analyzes in detail the adaptive control of streaming media transmission, including congestion control, quality adaptation, and error control.