PHRHLS: A Movement-Prediction-based Joint Routing and Hierarchical Location Service for VANETs
Résumé
Geographic routing protocols use location information when making routing decisions. These information are maintained by location-based services. These two issues are directly related, but they are treated separately in Vehicular Ad hoc Network (VANET) researches. In this paper, we propose a hybrid approach, denoted mobility-Prediction-based Hybrid Routing and Hierarchical Location Service (PHRHLS), coupling a VANET routing protocol, the Greedy Perimeter Stateless Routing (GPSR), and the Hierarchical Location Service (HLS) extended with a mobility prediction algorithm. We show that our approach, PHRHLS, reduces the localization overhead and enhances the routing performances. Indeed, the extensive simulations we conducted in order to validate our approach, show promising results in terms of end-to-end latency, packet delivery ratio and control message overhead.