Road segment information based named data networking for vehicular environments

Abstract

Vehicular Ad Hoc Network (VANET) can provide strong support for intelligent transportation systems and Internet services. How to disseminate data to vehicular nodes has been always at the core of VANET technologies. In this paper, we consider data dissemination via Named Data Networking (NDN), which is a new and promising Internet technology to realize content centric networking. NDN can route and forward data according to data content (or ID) rather than the address/location of the data, so that it can disseminate and share data more efficiently. Our work focuses on how to cope with the mobility of vehicular nodes, which is not considered in original NDN. Different from existing NDN for vehicular environments, we propose to establish data dissemination route using road segment information rather than node information. Such a new approach can avoid the effect of topology changes on data routes so as to keep data routes stable. A road segment route is instantiated as routes of nodes upon data forwarding demands. The mechanism to realize such an instantiation is the major challenge addressed in our design. Simulations via ndnSIM clearly show that our design performs much better than existing ones.