Simulation of VANET Applications

Simulation of VANET Applications

Valentin Cristea (University Politehnica of Bucharest, Romania), Victor Gradinescu (University Politehnica of Bucharest, Romania), Cristian Gorgorin (University Politehnica of Bucharest, Romania), Raluca Diaconescu (University Politehnica of Bucharest, Romania) and Liviu Iftode (Rutgers University, USA)
DOI: 10.4018/978-1-60566-338-8.ch014
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This chapter systematically presents actual issues regarding the simulation of VANET applications. Some of them refer to challenges in developing VANET simulators. The chapter discusses simulator architectures, models used for representing the communication among vehicles, vehicles mobility features, and simulation tool implementation methods. A critical analysis of the solutions adopted in some well-known actual simulators is also included. Other issues relate to the use of simulation in the evaluation of applications that aim at improving the traffic safety and control. Representative city and highway application scenarios are discussed, and results that can be obtained by simulation, along with ways these results can be exploited by VANET developers and users are highlighted. Future trends in the development of simulators that produce more accurate results and their use for the evaluation of more sophisticated traffic control solutions are also included.
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Simulating a VANET involves two different aspects. First, there are issues related to the communication among vehicles. Network simulators, like The Network Simulator—ns-2 (2008) and Jist/SWANS (2008) cope with communication issues and focus on network protocol characteristics.

The second very important aspect is related to the mobility of the VANET nodes. Traffic simulators take into account the traffic model, not necessarily in conjunction with VANETs. For example, TRANS—Traffic Network Simulator (Katz, 1963) was used to optimize the timing of traffic lights in the absence of inter-vehicular communication.

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