A new scalable reactive location based ad hoc routing protocol for VANETs

VANETs are used for high-speed, short-range communication among vehicles and vehicle to road side equipments, consistent internet connectivity resulting in improved road safety alerts, accessing comforts and for entertainments. Within VANETs, Vehicle mobility leads to constant breakage of communication links between vehicles. Such link failures require a direct response from the routing protocols in VANETs. This leads to increase the routing overhead in VANET and also reduce network efficiency or scalability. In this paper, we propose a reactive location based ad hoc routing protocol. This routing protocol minimize the routing overhead by using the efficiently make use of all the location information available. This protocol moves to reactive routing as location information degrades. Through analysis and simulation we show that our protocol is efficient in presence of high Location errors in all environments of VANETS.