arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.4936cs.MMcs.PF
收藏

分布式多媒体系统中管理QoS的一种新方法

A New Approach to Manage QoS in Distributed Multimedia Systems

Bechir Alaya, Claude Duvallet, Bruno Sadeg

摘要:

处理网络拥塞是用于提高分布式多媒体系统中的服务质量(QoS)的标准。针对网络拥塞问题的现有解决方案忽略了可扩展性考虑,因为它们为每个视频流保持单独的分类。在本文中,我们提出了一种新的方法,允许控制QoS提供给客户端根据网络拥塞,丢弃一些帧时,需要的。提出的技术,称为(m,k)-帧,是可扩展的应用程序的性能几乎没有下降。(m,k)-框架方法是从(m,k)-固定实时约束的概念出发提出的,即在一个任务的k次调用中,m次调用必须满足其截止期。我们的模拟研究表明,(m,k)帧的方法,以适应QoS的真实条件下,在多媒体应用程序中,根据当前的系统负载的有用性。值得注意的是,当活动客户端1的数量变化时,即客户端的动态到达时,系统必须调整提供给活动客户端1的QoS。

英文摘要:

Dealing with network congestion is a criterion used to enhance quality of service (QoS) in distributed multimedia systems. The existing solutions for the problem of network congestion ignore scalability considerations because they maintain a separate classification for each video stream. In this paper, we propose a new method allowing to control QoS provided to clients according to the network congestion, by discarding some frames when needed. The technique proposed, called (m,k)-frame, is scalable with little degradation in application performances. (m,k)-frame method is issued from the notion of (m,k)-firm realtime constraints which means that among k invocations of a task, m invocations must meet their deadline. Our simulation studies show the usefulness of (m,k)-frame method to adapt the QoS to the real conditions in a multimedia application, according to the current system load. Notably, the system must adjust the QoS provided to active clients1 when their number varies, i.e. dynamic arrival of clients.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑