Performance of Vehicular Visible Light Communications under the Effects of Atmospheric Turbulence with Aperture Averaging

被引：16

作者：

Eso, Elizabeth ^{[1
]}

Ghassemlooy, Zabih ^{[1
]}

Zvanovec, Stanislav ^{[2
]}

Sathian, Juna ^{[1
]}

Abadi, Mojtaba Mansour ^{[1
]}

Younus, Othman Isam ^{[1
]}

机构：

[1] Northumbria Univ, Fac Engn & Environm, Opt Commun Res Grp, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

[2] Czech Tech Univ, Fac Elect Engn, Dept Electromagnet Field, Prague 16627, Czech Republic

来源：

SENSORS | 2021年 / 21卷 / 08期

基金：

欧盟地平线“2020”;

关键词：

vehicular; visible light communication; atmospheric turbulence; aperture averaging; incoherent light source; DIVERSITY; MODEL;

D O I：

10.3390/s21082751

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, we investigate the performance of a vehicular visible light communications (VVLC) link with a non-collimated and incoherent light source (a light-emitting diode) as the transmitter (Tx), and two different optical receiver (Rx) types (a camera and photodiode (PD)) under atmospheric turbulence (AT) conditions with aperture averaging (AA). First, we present simulation results indicating performance improvements in the signal-to-noise ratio (SNR) under AT with AA with increasing size of the optical concentrator. Experimental investigations demonstrate the potency of AA in mitigating the induced signal fading due to the weak to moderate AT regimes in a VVLC system. The experimental results obtained with AA show that the link's performance was stable in terms of the average SNR and the peak SNR for the PD and camera-based Rx links, respectively with <1 dB SNR penalty for both Rxs, as the strength of AT increases compared with the link with no AT.

引用

页数：18

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