摘要
基于IPTV网络的视频会话系统具有广阔的应用前景。研究并实现了一种基于IPTV网络的具有服务质量保证的新型视频会话系统,阐述了该系统的体系架构及业务流程,提出了适用于本视频会话系统的嵌入式IP机顶盒的体系架构,并针对嵌入式系统资源受限的特点进行了性能优化设计,特别提出了一种带宽自适应的QoS机制,充分保证视频会话应用在IPTV网络多业务环境下的用户体验。
Video conversation system based on IPTV network is very promising. In the paper a novel video communication system based on IPTV network with QoS guarantee is researched and implemented. The system architecture and service flow chart is first described. Then the design of an embedded IP set top box applicable to the video conversation system is shown and performance optimization method based on embedded system is put forward. Finally a bandwidth adaptive QoS mechanism is brought forward to guarantee user experience of video conversation in IPTV network which is filled with various video applications.
出处
《微计算机信息》
2010年第2期13-15,共3页
Control & Automation
基金
基金申请人:孙鹏
项目名称:一种具有服务质量保证的业务驱动型家庭网络体系架构及组网技术研究
基金颁发部门:国家高技术研究发展计划(863计划)(2007AA01Z235)
