Efficient source mobility support in content-centric networking

摘要

With the development of wireless network technology, the number of mobile devices that access to contents on Internet increases rapidly. It is impressively popular for mobile users to use their mobile devices anytime and anywhere to generate, access and share contents on the Internet. To comply with this tendency, a new network paradigm called content-centric networking (CCN) emerges. With extensive research and demonstration, CCN is gradually widely recognized as a promising next generation Internet architecture, but remains an open issue on how to support source mobility in CCN. In this paper, we take full advantage of the locator/identifier separation along with control and data plane separation into supporting efficient source mobility in CCN. We decouple the content name from both routing of content requests and content identifying. We split the control and data plane by handling handover signaling and data traffic separately. We also divide the network into many rendezvous domains and design the handover processes of intra-domain and inter-domain movements. We then propose a method to allocate a rendezvous point for a mobile source according to its history roaming behavior in a rendezvous domain. Finally, we present numerical results to demonstrate the performance of the proposed approaches.