基于CCN的内容提供者移动性管理机制研究与设计

Content Provider Mobility Management of Content-centric Network

内容中心网络(CCN,Content-Centric Network)是一种以内容为中心的新型网络架构,主要通过内容进行路由和缓存。无线通信技术的发展和用户需求的改变使得内容中心网络成为下一代互联网架构研究的热点。内容中心网络可以利用网络内路由缓存技术提高网络资源的利用率。但是,内容中心网络在解决内容提供者移动性方面还存在丢包和内容过多重传的问题。本文提出了一种在分域代理节点上缓存请求和响应信息的方案来解决内容中心网络中内容提供者移动性问题。通过仿真分析,与传统内容中心网络对比,本方案能够减少部分内容请求在内容提供者移动时的时间延迟,提高用户体验。

Content Centric Network is a new network architecture,Mainly through the content routing and cach-ing.With the development of wireless communication technology and the change of user's needs,the content centric network has become a hot research in next-generation internet architecture.Although the content centric network can improve network resource by using routing cache technology,but it still exits some problems in the content provider mobility such as packets loss and content over multiple transmission.This paper presents an approach on domain proxy node cache request and response information to solve the provider mobility.Through simulation analysis,compared with traditional content centric network,this approach can reduce the delay time and improve the user experience.