摘要： 针对IP网络中传输多媒体信息存在较大延时和抖动以及带宽有限性等特征，结合RTP协议的特征设计与实现一种基于模糊控制理论的流媒体服务器质量控制系统。该系统能根据网络状况自适应地改变发送策略，结合编码后数据的特点，丢弃一些不必要的数据，这样不仅能节约一定的带宽，也保证了关键数据的传输和良好的服务质量。

关键词: 流媒体服务器, 模糊控制, 服务质量, 实时传输协议, 自适应传输

Abstract: Facing to the feature of delay and jitter in the course of transporting media data in present IP network, this paper designs and realizes the controllable-quality system used for streaming-media server based on fuzzy-control theory in virtue of characteristic of the RTP. It can automatically change the strategy of sending according to the condition of network. The method which is to discard some unnecessary frame based on the feature of coded data not only can save certain brand width, but also guarantees the transportation of key data. Consequently, that assures favorable quality of service.

Key words: streaming media server, fuzzy-control, Quality of Service(QoS), real-time transportation protocol, adaptive-tuning transportation

中图分类号: 

• TP37