Fifth International Conference on Simulation Tools and Techniques

Research Article

Modeling and Simulation of WAVE 1609.4-based Multi-channel Vehicular Ad Hoc Networks

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  • @INPROCEEDINGS{10.4108/icst.simutools.2012.247743,
        author={Ali Ghandour and Marco Di Felice and Hassan Artail and Luciano Bononi},
        title={Modeling and Simulation of WAVE 1609.4-based Multi-channel Vehicular Ad Hoc Networks},
        proceedings={Fifth International Conference on Simulation Tools and Techniques},
        publisher={ICST},
        proceedings_a={SIMUTOOLS},
        year={2012},
        month={6},
        keywords={vehicular ad hoc networks wave 16094 protocol modeling and simulation performance evaluation},
        doi={10.4108/icst.simutools.2012.247743}
    }
    
  • Ali Ghandour
    Marco Di Felice
    Hassan Artail
    Luciano Bononi
    Year: 2012
    Modeling and Simulation of WAVE 1609.4-based Multi-channel Vehicular Ad Hoc Networks
    SIMUTOOLS
    ICST
    DOI: 10.4108/icst.simutools.2012.247743
Ali Ghandour1, Marco Di Felice2,*, Hassan Artail3, Luciano Bononi2
  • 1: Department of Electrical and Computer Engineering, American University of Beirut
  • 2: Department of Computer Science, University of Bologna
  • 3: Department of Electrical and Computer Engineering
*Contact email: difelice@cs.unibo.it

Abstract

Recently, the IEEE 1609.4 Standard for Wireless Access in Vehicular Environments (WAVE) has been proposed to enhance the performance of vehicular networks with multi-channel operations that allow for the coexistence of safety-related and non-safety related vehicular applications. However, while the benefits of the multi-channel approach are clear, the impact of the IEEE 1609.4 channel scheduler on the performance of delay-constrained vehicular applications remains to be well explored by researchers. At present, the evaluation of 1609.4-based Vehicular Ad Hoc Networks (VANETs) constitutes an open issue due to the lack of simulation tools that can provide a complete modeling of the IEEE WAVE 802.11p/1609.4 stack. In this paper, we describe our implementation of the IEEE 1609.4 protocol integrated with the ns2 implementation of the 802.11p MAC protocol. Our evaluation study of 1609.4-based VANETs shows that the tight channel synchronization issues might have a dramatic impact on the performance of safety-related applications. We propose two new enhancements for the WAVE protocol stack to favor the dissemination of safety messages in multi-channel VANETs. The suggested algorithms are shown to greatly improve packet delivery ratio and delay of safety applications in single and multi-hop topologies, while preserving the synchronization scheme of the IEEE 1609.4 protocol.