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Studying the Delay Performance of Opportunistic Communication in VANETs with Realistic Mobility Models

机译:用现实移动模型研究VANET中机会通信的时延性能。

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We study the behaviour of packet delays and inter-forwarding times in vehicular networks utilizing opportunistic communication protocols. Our results are obtained through an extensive simulation campaign employing realistic models of vehicular mobility and scenarios derived from real urban environments. We also explore the impact of different forwarding strategies and traffic types on the results. Fitting of probability distributions is carried out for all results, clearly demonstrating the heavy-tailed behaviour of packet delays, inter-forwarding times as well as inter-contact times. In particular, exponential distribution occasionally assumed in analytical studies is strongly ruled out even as a viable approximation for inter-contact times.
机译:我们研究了使用机会通信协议的车载网络中数据包延迟和转发时间的行为。我们的结果是通过广泛的模拟活动获得的,该活动采用了真实的车辆机动性模型和源自真实城市环境的情景。我们还将探讨不同转发策略和流量类型对结果的影响。对所有结果进行概率分布的拟合,清楚地表明了数据包延迟,转发时间和联系时间的重尾行为。特别是,即使作为接触时间的可行近似值,也强烈排除了分析研究中偶尔假定的指数分布。

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