Impact of Vehicle Headlights Radiation Pattern on Dynamic Vehicular VLC Channel

Alsalami, Farah Mahdi; Aigoro, Nurudeen; Mahmoud, Abdulrahman A.; Ahmad, Zahir; Haigh, Paul Anthony; Haas, Olivier; Rajbhandari, Sujan

doi:10.1109/jlt.2021.3064811

Cited by 29 publications

(16 citation statements)

References 27 publications

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“…Additionally, ref. [ 30 ] introduces a path loss model that considers asymmetric lighting conditions. However, there are limited studies addressing the NLoS vehicular VLC channel.…”

Section: Technical Challenges In Vehicular Vlc and Solutionsmentioning

confidence: 99%

“…Earlier results have focused on indoor channel modeling, which does not apply to vehicular VLC systems with inherently different characteristics. For example, earlier works assumed the ideal Lambertian model for vehicular light sources, which fails to match the illumination characteristics of automotive headlights, taillights, traffic lights, and streetlights with their asymmetrical intensity distributions [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. The effects of road reflectance, road type, weather conditions, the orientation of the user/vehicle equipment and infrastructure, receiver aperture size, and sunlight might strongly affect the link performance of vehicular VLC systems.…”

Section: Introductionmentioning

confidence: 99%

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A Survey of Vehicular VLC Methodologies

Al Hasnawi,

Marghescu

2024

Sensors

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Visible Light Communication (VLC) has recently emerged as an alternative to RF-based wireless communications. VLC for vehicles has demonstrated its potential for Intelligent Transportation Systems (ITSs) to exchange information between vehicles and infrastructure to achieve ITS core goals, such as improving road safety, passenger comfort, and traffic flow. This paper seeks to provide a detailed survey of vehicular VLC systems. This paper presents an overview of current developments in vehicular VLC systems and their benefits and limitations for experienced researchers and newcomers.

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“…Additionally, ref. [ 30 ] introduces a path loss model that considers asymmetric lighting conditions. However, there are limited studies addressing the NLoS vehicular VLC channel.…”

Section: Technical Challenges In Vehicular Vlc and Solutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Survey of Vehicular VLC Methodologies

Al Hasnawi,

Marghescu

2024

Sensors

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“…Moreover, the authors in [23] presented outdoor measurement results to reveal how the dynamic road traffic impacts the performance of V2V-VLC systems, including the average bit error rate (BER) and average inter-vehicular distance. Considered the impact of vehicle headlight radiation pattern on the system performance, the authors in [24] established a statistical path loss model to characterize the large-scale fading of vehicular VLC channels with dynamic road traffic. The authors in [25] investigated the performance of V2V-VLC systems in the presence of sunlight noise, and the authors in [26] developed an extended-Kalman filter to mitigate the negative impact of sunlight noise.…”

Section: A Literature Reviewmentioning

confidence: 99%

VLC-Assisted Safety Message Dissemination in Roadside Infrastructure-Less IoV Systems: Modeling and Analysis

Xie,

Xu,

Zhang

et al. 2024

IEEE Internet Things J.

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Internet-of-vehicles (IoV) is an emerging paradigm with significant potential to improve traffic efficiency and driving safety. Here, we focus on the design of a novel visible light communication (VLC)-assisted scheme to enable driving safetyrelated IoV services that require ultra-reliable and low-latency communications (URLLC). Specifically, the vehicle-to-vehicle (V2V) communication mode is adopted to satisfy the ultra-low latency requirement of URLLC in roadside infrastructure-less IoV systems. In the outdoor V2V-VLC scenarios, the quality of the received optical signal is degraded by path loss, atmospheric turbulence and additive noise. In addition, the short-packet feature of URLLC introduces inevitable data decoding errors and imperfect channel state information (CSI). Against this background, we aim to investigate the reliability performance of URLLC in outdoor V2V-VLC systems, which is described by the average packet loss probability under given user-plane transmission latency. Firstly, we consider the ideal case of a perfect CSI at receiver, and derive an analytical expression of average packet loss probability. Further, a closed-form approximation is provided to simplify the numerical calculation. Next, we extend the theoretical analysis to a practical V2V-VLC system with imperfect CSI at the receiver. Through numerical results, we validate the accuracy of our designed theoretical framework and propose some preliminary ideas to enable driving safety-related IoV services in outdoor V2V-VLC systems.

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“…Hence, a universal model that considers the impact of these variables can be found by combining the impact of independent variables. The effect of the radiation pattern on VVLC was considered in [22], where analytical models that can describe the radiation pattern of headlamp from different manufacturers and designs were proposed. The impact of different weather conditions and specular reflections from surrounding vehicles and road was considered in [23].…”

Section: A Related Workmentioning

confidence: 99%

Impact of Dynamic Traffic on Vehicle-to-Vehicle Visible Light Communication Systems

Alsalami

Haas

Al-Kinani³

et al. 2022

IEEE Systems Journal

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This paper studies the impact of dynamic vehicular traffic density on the signal-to-noise-ratio (SNR) and the associated bit-error-rate (BER) performance of vehicle-to-vehicle visible light communication (V2V-VLC) systems. The study uses traffic data from the M42 and M6 motorways in the UK to investigate the probability of co-existence of other vehicles in the adjacent lanes which induce interference and act as potential reflectors. The results show that the probability of co-existence of other vehicles in the adjacent lanes is lane-independent and it increases during the rush hours to 90%, while it decays to less than 10% during the off-peak and early morning hours. The inter-vehicular distance and the BER performance vary widely between different lanes and different periods of the day. The results also show that the BER performance of V2V-VLC system with non-line-of-sight (NLOS) component and with line-of-sight (LOS) component are comparable at rush hours. However, high BER values are predicted during the off-peak hours for NLOS components of the channel.

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Impact of Vehicle Headlights Radiation Pattern on Dynamic Vehicular VLC Channel

Abstract: This document is the author's post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.

Cited by 29 publications

References 27 publications

A Survey of Vehicular VLC Methodologies

A Survey of Vehicular VLC Methodologies

VLC-Assisted Safety Message Dissemination in Roadside Infrastructure-Less IoV Systems: Modeling and Analysis

Impact of Dynamic Traffic on Vehicle-to-Vehicle Visible Light Communication Systems

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