基于网格的流媒体服务QoS管理框架及实现

流媒体服务是Internet上一类高带宽需求和高实时性约束的应用，对服务质量（Quality of Service，QoS）有较高的要求。流媒体服务的发展导致传统的QoS管理框架难以适应平台的异构性和复杂性。本文提出了一种基于网格的流媒体服务QoS管理框架，为由异构的系统构成的流媒体服务提供集成的、平台无关的QoS管理机制。在谈框架的基础上，我们设计了一个基于网格的流媒体服务QoS管理系统。

A Grid-based QoS Management Framework and Implementation of Stream Media Services

Stream media services are such a kind of services over Internet that require high bandwidth and have strict time constraints.The quality of service(QoS)of stream media services,embodied by the link delay,package loss rate and so on,must be carefully dealt with.The conventional QoS management frameworks,however,don't work in the extensive heterogeneous environment of stream media services nowadays.In this paper,we present a grid-based QoS management framework for stream media services which can be deployed on heterogeneous platforms.Our goal is to provide an integrated and platform-independent QoS management mechanism for stream media services.We also de- scribe a prototype system based on this QoS management framework.