摘要
针对多媒体服务提供商和用户所关注网络服务质量问题,设计了一个能够保障端到端流服务性能的多媒体服务系统。该系统首先设计了一个分层数据流曲线的多媒体数据源,接着采用端到端链路测量技术得到通信链路的丢包率和带宽,并利用接纳控制和QoS协商技术保证了多媒体流的服务质量。最后应用NS2进行了系统仿真实验及结果分析。
To solve network service QoS concerned by multi-media service providers and users,a multi-media service system is designed which can offer end-to-end service performance.A multi-media data source including hierarchical data stream curve is designed firstly.And then the parameters of packet loss rate and bandwidth is obtained by applying end-to-end link measuring technology.Moreover system service QoS is guaranteed by the technology of admission control and QoS negotiating.Finally system emulating experiment and result analysis with NS2 are implemented.
出处
《科学技术与工程》
2009年第8期2232-2235,共4页
Science Technology and Engineering
基金
湖南省教育厅科学研究项目(07D007)资助
