A novel cache scheme based on content popularity and user locality for future internet

Abstract

Information-Centric Network (ICN) is being regarded as a promising technology in future Internet. Content Centric Network (CCN) has been proposed to facilitate users acquire multimedia contents. It not only replaces traditional IP-based connections with content delivery but also realizes the features of named data and content store. However, existing cache scheme in CCN does not elaborate on content attributes. The unnecessary content seriously occupies the content store of routers and wastes storage resources. In this paper, we aim to tackle the cache problem of popular and normal contents in CCN. A cache scheme as well as the cache scheme based on content popularity and user locality (CSCPUL) is proposed to solve the cache problem. Results showed that the CSCPUL is superior to traditional cache scheme in CCN in terms of cache cost and cache hit rate.