| Summary: | 碩士 === 國立東華大學 === 資訊工程學系 === 103 === The rapid growth of user-generated content puts a significant load on the current internet infrastructure which was purposely designed for host-to-host communication rather than host-to-content. Information-centric networking (ICN) is one which supports host-to-content routing. One important features of ICN infrastructure is in-networking caching. As cache capacities of routers are relatively small compared with delivered data size, one challenge of in-networking caching is how to efficiently use the cache resources. This thesis investigates the potential of caching data at the router-level in ICN and we proposed a graph-related centrality caching approach we called Communicability Centrality Caching (CCC) to improve cache hit, reduce cache redundancy, reduce delay (latency) and improve efficient utilization of available cache resources, and balance distribution of content among the available caches. In fact, the difference in terms of cache hits, and latency reaches up to 28% of the overall traffic when compared with CL4M. However, the behaviour and the performance of CCC approach depend heavily on the network topology on which it is applied. We also took the advantage of HR Hybrid SM scheme and combined it with our CCC approach in order to better minimize latency and link load an approach we called HR Hybrid SM-CCC. The HR Hybrid SM-CCC has immensely improved cache diversity within the networks (ISPs) with a considerable reduction of access delay (latency) to about 90 % when compared to HR Hybrid SM and the other on-path schemes.
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