A CCN Cache Method Based on Content Popularity and Node Importance
A popularity and content technology, applied in the Internet field, can solve the problems of short cache time, inaccessibility, and redundancy of popular content, and achieve the effect of reducing redundancy and improving cache performance
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] Based on the various problems in the above schemes, this scheme proposes to consider the centrality of nodes on the basis of content popularity ranking, and convert popularity into request frequency, for example, measure the popularity of content a into request frequency q( a), ranking the named content items in the system based on the global popularity. The centrality of a node reflects the importance of the node in the network, and the centrality is equal to the degree of a router node, that is, the number of links associated with the router. When the requested content is returned along the original path, the caching mechanism caches the content on the node with the largest node centrality. After the cache is full, a content popularity rank...
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