通信学报2017，Vol.38Issue(6)：10-18,9.DOI:10.11959/j.issn.1000-436x.2017113
基于节点中心性度量的内容中心网络缓存机制
Node centrality metric based caching mechanism in content-centric network
摘要
Abstract
In order to reduce the cache redundancy as well as increase the cache hit ratios in content-centric networks, the node centrality metric based caching mechanism (CMC) was proposed. CMC utilized controllers to obtain the topology of the whole network and the idle rate of cache space. According to the connection relation of the topology, the degree centrality, closeness centrality and betweenness centrality of nodes were calculated. When CMC choose the caching nodes, it took the three metrics and the idle rate of cache space into account. Simulation results show that CMC can effec-tively increase the cache hit ratios and reduce the content fetching hops and average request delay compared with the tra-ditional routing algorithms in CCN.关键词
内容中心网络/缓存机制/中心性/度量Key words
content-centric network/caching mechanism/centrality/metric分类
信息技术与安全科学引用本文复制引用
蔡岳平,刘军,樊欣唯..基于节点中心性度量的内容中心网络缓存机制[J].通信学报,2017,38(6):10-18,9.基金项目
国家自然科学基金资助项目(No.61301119) （No.61301119）
教育部高等学校博士学科点专项科研基金资助项目(No.20120191120025) （No.20120191120025）
教育部留学归国人员启动基金资助项目(No.1020607820140002)The National Natural Science Foundation of China (No.61301119), Research Fund of Young Scholars for the Doctoral Program of Higher Education, Ministry of Education (No.20120191120025), The Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education (No.1020607820140002) （No.1020607820140002）
