Multisource Dissemination in Content-Centric Networking

As one novel network architecture for future Internet, Content-Centric Networking (CCN) is centered around content distribution and retrieval based on in-network caching. However, the potential advantage of in-network caching does not be fully unleashed in the original sketch of CCN. Network coding improves performance by introducing computing into current Internet. This paper proposes CCN-NC (Content-Centric Networking with Built-in Network Coding). In this architecture, in-network caching is collaborating with network coding to achieve multisource dissemination at network level. Firstly, this paper addresses some key challenges of CCN-NC's design, such as format of data message, naming, forwarding strategy and communication scheme. Then, we validate the architecture in the final part of the paper. The experiment results show that CCN-NC improves throughput by 35.5% compared to the current TCP/IP and by 17.4% compared to original CCN. The robustness of network also is increased.