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中文摘要：
针对内容中心网络（CCN,content centric networking）中沿路径缓存策略存在的问题,设计了一种最大介数节点和边缘节点协同的缓存策略。根据网络拓扑特性,在最大介数节点感知流行内容,边缘节点协同跟踪;依据内容流行度和缓存空间,指定内容在传输路径的存储位置。仿真实验表明,与经典算法相比,该策略有效提高了缓存命中率,同时降低了平均路由跳数比,改善了缓存系统的效率。
英文摘要：
To overcome the problems of the on-path caching schemes in the content centric networking,a coordinated caching scheme based on the node with the max betweenness value and edge node was designed.According to the topology characteristics,the popular content was identified at the node with the max betweenness value and tracked at the edge node.The on-path caching location was given by the popularity and the cache size.Simulation results show that,compared with the classical schemes,this scheme promotes the cache hit ratio and decreases the average hop ratio,thus enhancing the efficiency of the cache system.
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