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arXiv 2007.10975eess.SP
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车联网室外可见光通信系统性能分析

Performance Analysis of an Outdoor Visible Light Communications System for Internet-of-Vehicles

Ramadan Abdul-Rashid, Anas M. Salhab, Salam A. Zummo

摘要:

本文研究了用于车联网的室外可见光(OVLC)通信系统的性能。在所提出的系统中,放大和转发(AF)的机会主义计划被用来扩大从交通灯到车辆的信息广播的范围。该方法利用Gamma-Gamma信道增益和朗伯直流信道增益来模拟每次传输的衰落系数,利用短时噪声和热噪声模型来表示系统噪声。通过推导等效端到端信噪比(SNR)的累积分布函数(CDF)和概率密度函数(PDF)的封闭形式的表达式来检查系统的统计。新的封闭形式方程也开发了中断概率和遍历容量。数值模拟结果表明,系统性能的中断概率和遍历容量的减少湍流强度。结果还表明,随着车辆之间的距离的增加,系统的性能恶化。

英文摘要:

This paper looks at the performance of an outdoor visible light (OVLC) communication system used for Internet-of-Vehicles (IoV). In the proposed system an amplify-and-forward (AF) opportunistic scheme is used to extend the range of information broadcast from a traffic light to vehicles. The Gamma-Gamma channel gain and the Lambertian direct current (DC) channel gain are used to model the fading coefficient of each transmission and the short and thermal noise models used to represent the system noise. The statistics of the system are examined by deriving closed-form expressions for the cumulative distribution function (CDF) and probability density function (PDF) for the equivalent end-to-end signal-to-noise ratio (SNR). Novel closed form equations are also developed for the outage probability and ergodic capacity. Numerical simulations performed showed that the system performance in terms of both outage probability and ergodic capacity improves with decreasing turbulence intensity. Results also illustrate that, as the distance between the vehicles increases, the system performance is more deteriorated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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