MDC-Ca: Efficient Caching Management Strategy for CCN Using Multiple Description Coding

Due to the explosive growth of multimedia content (especially videos) over the Internet, content-centric networking (CCN) is proposed to remit the problems of modern bandwidth-intensive Internet usage patterns. Additionally, the current streaming media coding is designed for video service for IP networks. However, there are few researches who concentrate on efficient streaming media coding for the CCN pattern. It motivates us to find a suitable video coding to improve the performance of CCN. This paper proposes an advanced caching management strategy by combining the Multiple Description Coding (MDC) to the content items, termed as MDC-Ca. The core parts of CCN, e.g., location-independent naming, name-based routing and in-network caching strategy, are all adjusted to the content communication. Moreover, MDC-Ca can deal with the ruleless content chunk distribution in the caching of network nodes. MDC-Ca was studied in a mathematical analysis model and the scheme performs well in the simulation. Further, we perform the emulation in a practical network. The experimental results from both simulations and practical emulations show the superiority of the proposed caching management strategy.CPCI-S(ISTP)chenfuxing@pku.edu.cn; wyliu@pku.edu.cn; lih64@pkusz.edu.c