¹KCG College of Technology, Chennai, India.
²Jeppiaar Engineering College, Chennai, India.

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Abstract—Vehicular Ad Hoc Networks (VANETs) are the extension of multi hop Mobile Ad Hoc Networks (MANETs) formed by fast moving vehicles on the roads as computing and communicating nodes to provide safety services in the Dedicated Short Range Communication (DSRC) system developed upon the family of IEEE 802.11 standards. Establishment of direct wireless communication between fast moving vehicles on the road ensures the exchange of data between them even in the absence of any previously deployed communication infrastructure like road side access points and base stations. It is a widely accepted fact that simulating the network behavior is the feasible and cost effective way to do research on the network, rather implementing such a real world system. The topological changes due to movement of nodes in the network are reflected by the mobility models and it is a challenge of providing a dynamic vehicular mobility model to exhibit the realistic behavior of nodes accurately. Researchers show interest in developing communication protocols to support this technology and the network performance in view of routing protocols, connectivity, packet delivery, delays, congestion etc. is being inspired by the mobility pattern of nodes. It is a challenge that the traditional MANET mobility models cannot be applied to VANETs as such. Existing mobility models are not considering the strengths of the VANET such as constrained mobility, absence of power constraints or the ability of nodes to know their geographical position. This paper studies the existing mobility models for VANETs and reason out the challenges in incorporating MANET mobility models into VANET.

Index Terms—MANET, VANET, mobility models, simulation.

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Cite: S. Cloudin, P. Mohan Kumar, "Challenges on Mobility Models Suitable to Vanet," Journal of Software vol. 12, no. 2, pp. 91-100, 2017.