Abstract
In Intelligent Transport Systems (ITS), Vehicular Ad-hoc Networks (VANET) play an essential role in improving road safety and traffic efficiency. Nevertheless, due to its special characteristics like high mobility, large size of the network and dynamic topology make routing of data in the vehicular ad hoc network more challenging. The problem in these networks is to determine the routing protocol best suited to this environment, and then secure it to provide optimal and secure routing for the data. Recently, position-based routing protocol has been developed by researchers to be a very interesting routing technique for communication between vehicles. In this paper, we propose an secured and enhanced version of the Greedy Perimeter Stateless Routing (GPSR) protocol. This protocol consists of two modules: (i) To implement an improvement of GPSR routing protocol which minimizes transfer delays and control messages. (ii) To deal with security issues, we have proposed a solution that combines between an improved Diffie-Hellman algorithm for reliable key exchange and the hash function based Message Authentication Code (MAC) for the verification of the authentication and integrity of GPSR packet. The proposed solution was checked by the security protocol verification tool, Automated Validation of Internet Security Protocols and Applications (AVISPA), which indicated that it is a very secure level. Simulation results showed that our proposed compared to the original GPSR offers better performances.
Highlights
The technological development that the world has seen today has affected all areas, the communications sector, which is undergoing considerable change with the advent of wireless technology
The Vehicular Ad-hoc Networks (VANET) network is a subcategory of the Mobile Ad-Hoc Network (MANET) [6], where the nodes are replaced by vehicles, which can communicate with each other thanks to the On-Board Unit (OBU) and with other entities in the network such as the Road Side Unit (RSU) (Figure 1) [7]
We present the security analysis of our proposed scheme by the formal verification and we evaluate the results of simulation of the original Greedy Perimeter Stateless Routing (GPSR) and SEGPSR using Network Simulator 2 (NS2) in terms of several metrics
Summary
The technological development that the world has seen today has affected all areas, the communications sector, which is undergoing considerable change with the advent of wireless technology. Vehicular Ad hoc Networks (VANETs) are a new form of mobile ad hoc networks for establishing communications between vehicles or with infrastructure located at roadside. These networks are used to meet the communication needs applied to transport networks to improve driving and road safety for road users [1]. The VANET network is a subcategory of the Mobile Ad-Hoc Network (MANET) [6], where the nodes are replaced by vehicles, which can communicate with each other thanks to the On-Board Unit (OBU) and with other entities in the network such as the Road Side Unit (RSU) (Figure 1) [7]. Its main functions are broadening the communication range, providing connectivity to the OBU and other entities, and running security applications
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