电讯技术2017，Vol.57Issue(3)：311-315,5.DOI:10.3969/j.issn.1001-893x.2017.03.011
信息中心网络中基于节点缓存命中贡献率的缓存替换方案
A Cache Replacement Scheme Based on Contribution to Hit Ratio of Node in Content-centric Networking
摘要
Abstract
Content-centric networking( CCN) is a new network architecture. Its salient feature is caching everywhere. Deploying content caching reasonably can significantly improve the efficiency of network trans-mission. Caching replacement is an important part of caching management. A reasonable caching replace-ment scheme becomes an important factor of improving the quality of network. Considering the characteris-tics of content,this paper designs a new caching replacement scheme named GDH(Greedy-Dual-Hit) based on caching hit ratio of node. The number of requests,transmission cost and caching cost are taken into account to construct a new multiple-value function. The function can be used to evaluate the caching value of content. Cached content with the minimal value of multiple-value function is replaced for maximi-zing caching profit when the caching space is full. The simulation results show that the node hit rate is in-creased and the average hops of obtaining content is cut down.关键词
信息中心网络/缓存替换/网络传输效率/命中率/平均跳数Key words
content-centric networking(CCN)/caching replacement/transmission efficiency of network/hit ratio/average hop分类
信息技术与安全科学引用本文复制引用
徐昌彪,王华,王珩..信息中心网络中基于节点缓存命中贡献率的缓存替换方案[J].电讯技术,2017,57(3):311-315,5.基金项目
国家自然科学基金资助项目(61301124) （61301124）
