Popularity Prediction Oriented Provider Mobility Support in Content-Centric Networking

摘要

Mobility support has become one of the critical issues in the Content-Centric Networking (CCN) to meet the needs that a significant amount of multimedia data is transmitted over mobile devices. Many related research approaches, such as Tunnel-CCN, NamedPool-CCN, and Proxy-CCN, are presented to resolve such an issue. The performance improvements are limited by the rendezvous points to rebuild routing information. To address this incremental deployment problem, we propose POPM-CCN, a destination nodes selection, and concurrent content push scheme, with a popularity prediction oriented cache strategy with least squares method. The most popular contents are pushed to the appropriate nodes. Consequently, the same contents can in parallel be obtained from different intermediate nodes, thus reducing the transmission pressure of the content providers. We have simulated the handover procedures of the various proposals. The results show that the transmission delay and interest message loss ratio are efficiently reduced by 10%, while cache hit rate of contents acquires more than 20% promotion.