Research on the Energy-Efficient Caching Strategy in Content-Centric Networking

Due to the current explosion of the network traffic generated by content production and dissemination applications like popular video, Content-Centric Networking (CCN) has been the topic of recent research. In-network caching for CCN is expected to achieve an adaptive content delivery in the network and to reduce traffic by storing content data on each router. The impact of caching content on Content-Centric Networking (CCN) taking into account the energy-efficient non-cooperative caching strategy is investigated. By monetary consumption and router revenue to design a reasonable threshold, the data which has higher popularity and energy-efficient will be cached first. A costperformance ratio (CPR) algorithm is proposed to replace the content when the cache space is full. Thus, the network gets low service delay and communication energy, also the promotion of availability and efficiency can be achieved. Simulation results show that the strategy can effectively reduce network overhead and delay, and obtain better performance. KeywordsContent-Centric Networking; threshold; energy-efficient; cache; replace;