The location selection for CCN router based on the network centrality

摘要

Content-Centric Network (CCN) as one of the well-known Information Center Network (ICN) solutions has been getting more and more research recently. Different to the traditional Internet which is designed to connect the different terminals, CCN mainly focuses on the content delivery by enhancing the cache function of routers. However, in case of the interworking between the CCN and traditional Internet, we should carefully select the locations of CCN routers so that all the end users can get the better performance. So in this paper, we propose an evaluation metric called average content acquirement time based on the complex network centralities including the degree centrality, closeness centrality, betweenness centrality and eigenvector centrality to selection the location to acquire the tradeoff between deployment cost and service performance. We evaluate the average content acquirement time under different network centralities, and the results shows that the betweenness centrality has the better performance than others, and it can be used as a metric to select the location of CCR routers.