湖南大学学报（自然科学版）2016，Vol.43Issue(8)：142-150,9.
内容中心网络中一种基于内容扩散的主动缓存机制
Content Diffusion Based Proactive Caching in Content-centric Networks
摘要
Abstract
This paper borrowed the idea of molecular diffusion and proposed a proactive caching scheme based on content diffusion.In this mechanism,the conception of content concentration was introduced to analyze user demands for different contents in different network regions.In order to achieve fast content placement and increase the probability of providing responses to user requests by the nearer caching nodes, the content replicas were proactively pushed forward or migrated according to the content concentration difference between nodes.Furthermore,by synthetically considering the content popularity,a probabilis-tic content placement method was also implemented.The simulation results have shown that this scheme can effectively decrease the average access cost and improve the cache hit ratio.关键词
内容中心网络/扩散原理/主动缓存/内容流行度Key words
Content-centric Networking(CCN)/diffusion theory/proactive caching/content popularity分类
信息技术与安全科学引用本文复制引用
罗熹,安莹,牛碧诺..内容中心网络中一种基于内容扩散的主动缓存机制[J].湖南大学学报（自然科学版）,2016,43(8):142-150,9.基金项目
国家自然科学基金资助项目（61402541），National Natural Science Foundation of China（61402541）；网络犯罪侦查湖南省普通高等学校重点实验室开放研究基金资助项目（2016WLFZZC009）；网络侦查技术湖南省普通重点实验室开放研究基金资助项目 （）
