Priority-based Routing Framework for VANETs

Abstract

Vehicular ad hoc Network (VANET) is a collection of vehicles and associated roadside infrastructure which provide mobilewireless communication services. One of the significant use-cases is to transmit the images using VANET duringemergencies like road accidents, traffic congestion, fire, or traffic hazards. Priority-based routing allows the network toroute critical data on priority. This paper proposes a Priority-based Routing Framework for Image Transmission (PRoFIT)for VANETs. PRoFIT for VANETs delivers critical image features at high priority to the sink node for early processing.Simulations were carried out that use PRoFIT for VANETs during the mobility of vehicles in emergency scenarios. Thedetailed experiments show the impact of priority-based routing during the mobility of vehicles. Both grid topology andvehicular topology were simulated. Packet end-to-end delay and delivery ratios were analyzed. A comparison of results ofcritical image information delivery with PRoFIT and without PRoFIT shows the impact of using PRoFIT for VANETs.

Keywords

• smart city
• vehicular ad hoc network
• mobility
• priority-based routing
• cooja
• contiki-ng simulation