A New Content-Centric Routing Protocol for Vehicular Ad Hoc Networks

Routing protocols in Vehicular Ad hoc Network (VANET) have drawn lots of attention in recent years, most existing research efforts focus on designing IP-based protocols. In this paper, we present a new routing protocol for VANET based on Named Data Network (NDN). We optimize the routing path by using a new distance metric in the protocol, avoiding the shortcomings of hop-count based metric. Moreover, we use incremental broadcast and adaptive broadcast strategy according to vehicle density. In the experiment part, we construct a virtual urban scenario V-City to generate real world traffic and establish a coordinative test bed integrating SUMO with NS3. Simulation result shows that our protocol is more suitable for VANET environment than AODV.