An Intersection Dynamic VANET Routing Protocol for a Grid Scenario

Vehicular Ad-Hoc NETworks (VANETs) have received considerable attention in recent years, due to its unique characteristics, which are different from Mobile Ad-Hoc NETworks (MANETs), such as rapid topology change, frequent link failure, and high vehicle mobility. The main drawback of VANETs network is the network instability, which yields to reduce the network efficiency. This paper proposes a novel Intersection Dynamic VANET Routing (IDVR) protocol, which aims to increase the route stability, average throughput, and reduce end-to-end delay in a grid topology. We used a centralized Software Defined Network (SDN) to gather a real-time traffic information and provide the Intersection Cluster Head (ICH) a Set of Candidate Shortest Routes (SCSR). At the Intersection, An ICH algorithm is proposed based on the maximum Life Time (LT), the LT is the time that each vehicle requires till it leaves the cluster. The IDVR protocol selects the optimal route based on its current location, destination location, and the maximum of the minimum average throughput among the SCSR. We used SUMO traffic generator simulator and MATLAB to evaluate the performance of our proposed protocol. Our proposed protocol outperforms many protocols mentioned in the literature, such as IRTIV, VDLA, and GPCR, in terms of end-to-end delay and throughput.