CAJ | 학술논문

该文提出以内容为中心的网络(CCN)中一种基于代理的主动缓存方案。通过代理服务器主动请求与缓存移动切换过程中用户未能获取的内容，解决CCN网络中用户移动性支持问题。与现有CCN网络用户移动性支持方案相比，该文提出的基于代理的主动缓存方案，用户获取内容的时间成本与代理服务器获取内容的时间成本较低，用户的移动切换时延与内容获取的平均时间较短。该方案可有效利用CCN网络共享的内容资源，减缓用户移动对实时业务的不良影响。
해문제출이내용위중심적망락(CCN)중일충기우대리적주동완존방안。통과대리복무기주동청구여완존이동절환과정중용호미능획취적내용，해결CCN망락중용호이동성지지문제。여현유CCN망락용호이동성지지방안상비，해문제출적기우대리적주동완존방안，용호획취내용적시간성본여대리복무기획취내용적시간성본교저，용호적이동절환시연여내용획취적평균시간교단。해방안가유효이용CCN망락공향적내용자원，감완용호이동대실시업무적불량영향。
This paper proposes a proxy-based proactive caching approach for enhancing consumer mobility in Content Centric Networks (CCN). The approach requests proactively and caches the contents that a user does not receive but is requested before a handover process. Compared with other approaches for consumer mobility, the analytical and simulation results indicate that the proposed approach has shorter handover delay and less average content retrieval time. In addition, the proposed approach costs less in retrieving content for mobile users. This approach can also support efficient content sharing in mobile CCN environments and alleviate negative effects of consumer mobility on real-time services.