Effect of Fog and Rain on the Performance of Vehicular Visible Light Communications

Elamassie, Mohammed; Karbalayghareh, Mehdi; Miramirkhani, Farshad; Kızılırmak, Refik Çağlar; Uysal, Murat

doi:10.1109/vtcspring.2018.8417738

Cited by 80 publications

(64 citation statements)

References 26 publications

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“…Each scenario was specially designed to represent the most pressing problems in VLC. Variable natural conditions and their compensation are a topic for multiple teams and their research [6,9,37,105]. As fog is the most concerning problem, several teams tried to compensate its impact [47,106,107].…”

Section: Future Research and Discussionmentioning

confidence: 99%

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

2019

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In this paper, our first attempt at visible light communication system, based on software defined radio (SDR) and implemented in LabVIEW is introduced. This paper mainly focuses on two most commonly used types of LED lights, ceiling lights and LED car lamps/tail-lights. The primary focus of this study is to determine the basic parameters of real implementation of visible light communication (VLC) system, such as transmit speed, communication errors (bit-error ratio, error vector magnitude, energy per bit to noise power spectral density ratio) and highest reachable distance. This work focuses on testing various multistate quadrature amplitude modulation (M-QAM). We have used Skoda Octavia III tail-light and Phillips indoor ceiling light as transmitters and SI PIN Thorlabs photodetector as receiver. Testing method for each light was different. When testing ceiling light, we have focused on reachable distance for each M-QAM variant. On the other side, Octavia tail-light was tested in variable nature conditions (such as thermal turbulence, rain, fog) simulated in special testing box. This work will present our solution, measured parameters and possible weak spots, which will be adjusted in the future.

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Section: Future Research and Discussionmentioning

confidence: 99%

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

2019

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“…This is attributed to the simplicity of the adopted model and also to the lack of proper channel models for the mobility and orientation of VLC devices in indoor scenarios. Nevertheless, several measurement-based channel models for VLC system were derived recently for various environments, such as indoor VLC systems [131]- [137], VLC-based vehicular communication [138] and underwater VLC systems [139], [140].…”

Section: Incorporating Realistic and Measurements Based Vlc Channementioning

confidence: 99%

Physical Layer Security for Visible Light Communication Systems: A Survey

Arfaoui

Soltani

Tavakkolnia

et al. 2020

IEEE Commun. Surv. Tutorials

155

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Due to the dramatic increase in high data rate services and in order to meet the demands of the fifth-generation (5G) networks, researchers from both academia and industry are exploring advanced transmission techniques, new network architectures and new frequency spectrum such as the visible light and the millimeter wave (mmWave) spectra. Visible light communication (VLC) particularly is an emerging technology that has been introduced as a promising solution for 5G and beyond, owing to the large unexploited spectrum, which translates to significantly high data rates. Although VLC systems are more immune against interference and less susceptible to security vulnerabilities since light does not penetrate through walls, security issues arise naturally in VLC channels due to their open and broadcasting nature, compared to fiber-optic systems. In addition, since VLC is considered to be an enabling technology for 5G, and security is one of the 5G fundamental requirements, security issues should be carefully addressed and resolved in the VLC context. On the other hand, due to the success of physical layer security (PLS) in improving the security of radio-frequency (RF) wireless networks, extending such PLS techniques to VLC systems has been of great interest. Only two survey papers on security in VLC have been published in the literature. However, a comparative and unified survey on PLS for VLC from information theoretic and signal processing point of views is still missing. This paper covers almost all aspects of PLS for VLC, including different channel models, input distributions, network configurations, precoding/signaling strategies, and secrecy capacity and information rates. Furthermore, we propose a number of timely and open research directions for PLS-VLC systems, including the application of measurement-based indoor and outdoor channel models, incorporating user mobility and device orientation into the channel model, and combining VLC and RF systems to realize the potential of such technologies.

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“…The link BER performance was investigated for the clean and dirty headlamps in a wet and dry road surface. In [25], Elamassie et al carried out a comprehensive channel modeling study to quantify the effect of rain and fog on a V2V link with a high-beam headlamp acting as the transmitter. Taking advantage of advanced ray tracing features, they developed a path loss model for V2V link as a function of distance under different weather conditions.…”

Section: Channel Modelingmentioning

confidence: 99%

“…As hypothetical case, we first consider Lambertian channel model. Then, we adopt raytracing approach [25] to propose more realistic channel model taking into account several practical constrains such as the asymmetrical pattern of headlamp and street lights, reflections from road surfaces and weather conditions.…”

Section: Channel Modelingmentioning

confidence: 99%

ViLDAR—Visible Light Sensing-Based Speed Estimation Using Vehicle Headlamps

Abuella

Miramirkhani

Ekin

et al. 2019

IEEE Trans. Veh. Technol.

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The introduction of light emitting diodes (LED) in automotive exterior lighting systems provides opportunities to develop viable alternatives to conventional communication and sensing technologies. Most of the advanced driver-assist and autonomous vehicle technologies are based on Radio Detection and Ranging (RADAR) or Light Detection and Ranging (LiDAR) systems that use radio frequency or laser signals, respectively. While reliable and real-time information on vehicle speeds is critical for traffic operations management and autonomous vehicles safety, RADAR or LiDAR systems have some deficiencies especially in curved road scenarios where the incidence angle is rapidly varying. In this paper, we propose a novel speed estimation system so-called the Visible Light Detection and Ranging (ViLDAR) that builds upon sensing visible light variation of the vehicle's headlamp. We determine the accuracy of the proposed speed estimator in straight and curved road scenarios. We further present how the algorithm design parameters and the channel noise level affect the speed estimation accuracy. For wide incidence angles, the simulation results show that the ViLDAR outperforms RADAR/LiDAR systems in both straight and curved road scenarios.A provisional patent (US#62/541,913) has been obtained for this work.

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Effect of Fog and Rain on the Performance of Vehicular Visible Light Communications

Cited by 80 publications

References 26 publications

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

Physical Layer Security for Visible Light Communication Systems: A Survey

ViLDAR—Visible Light Sensing-Based Speed Estimation Using Vehicle Headlamps

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