1 引言近年来,随着分布式多媒体组应用的兴起,多媒体组通信机制开始得到人们的关注。组通信一直是一个比较重要的研究领域。对于传统的分布式组应用,已经取得了很多成果。但是,由于分布式多媒体组应用通常具有较高的QoS需求,因此传统分布式组应用领域的很多成果不能直接应用。为此,本文作者提出一种基于服务质量的多媒体组通信机制—QoS受控型组 1 Introduction In recent years, with the rise of distributed multimedia applications, multimedia communication mechanisms begin to attract people’s attention. Group communication has always been a more important area of ​​research. For traditional distributed group applications, many achievements have been made. However, because distributed multimedia group applications usually have high QoS requirements, many achievements in the traditional distributed group applications can not be directly applied. To this end, the author of this paper proposes a quality of service based multimedia group communication mechanism-QoS controlled group