Location-demanded data delivery over vehicular ad hoc networks

Vehicular ad hoc networks (VANET) have great potentials in modernizing transportation infrastructure. Deployment of data communications over such systems however is challenging due to node mobility. Unlike traditional networking scenarios, a user initiating a session for seeking traffic data (called receiver) is assumed to not know the identity associated with the counterpart. In reality, he or she instead likely issues data request with location description, rather than with identity description. In this sense, our study introduces a new notion of location-demanded session control and data delivery in a tenet of cross-layer design. We also let nodes communicate link quality to figure out the best route for a particular driver to look for an appropriate car who is able to return the traffic data that the receiver wishes. At the same time, we also implemented a route monitoring mechanism to assure an acceptable reliability of data delivery. Both simulations and experimental results demonstrate the feasibility and the soundness of the proposed strategy.