Performance analysis of VANETs under Rayleigh, Rician, Nakagami-m and Weibull fading

2017 International Conference on Communication, Computing and Digital Systems (C-CODE) Pub Date : 2017-03-01 DOI:10.1109/C-CODE.2017.7918915

Furqan Jameel, Faisal, M. Haider, A. A. Butt

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引用次数: 21

Abstract

Vehicular Ad-hoc Networks (VANETs) are considered as one of the promising technologies for reduction of accidents and provisioning of infotainment services on the road. Due to high mobility of vehicles, wireless channel response rapidly changes from time to time which results into random fading. Therefore, this paper provides in depth analysis of performance of VANETs under different fading channels. To be specific, we adopt the cluster based approach to analytically model VANETs. Closed-form expressions of packet loss probability for different fading (i.e. Rayleigh, Rician, Nakagami-m and Weibull channel) models have been provided considering both MAC and Physical Layer characteristics. The derived expressions also encompass the effect of decoding failure and packet collision based on signal to noise ratio (SNR) and back-off timer, respectively. Our results characterizes the impact of channel conditions, vehicle speed, and contention window on the performance of the cluster based VANETs. Extensive simulations are performed to verify our findings.

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Rayleigh、expert、Nakagami-m和Weibull衰落下VANETs的性能分析

车辆自组织网络(VANETs)被认为是减少交通事故和提供信息娱乐服务的有前途的技术之一。由于车辆的高移动性，无线信道响应随时间变化很快，导致随机衰落。因此，本文对vanet在不同衰落信道下的性能进行了深入分析。具体而言，我们采用基于聚类的方法对vanet进行分析建模。在考虑MAC和物理层特性的情况下，给出了不同衰落模型(即Rayleigh、ician、Nakagami-m和Weibull信道)丢包概率的封闭表达式。推导出的表达式还分别包含了基于信噪比(SNR)和后退定时器的解码失败和包碰撞的影响。我们的结果表征了通道条件、车辆速度和争用窗口对基于集群的vanet性能的影响。进行了大量的模拟来验证我们的发现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 International Conference on Communication, Computing and Digital Systems (C-CODE)

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