Visible Light Communication for Vehicular Networks: A Tutorial

2025-10-13

AI Summary

Visible light communication (VLC) for vehicular networks and intelligent transportation systems faces critical challenges including solar interference, LED flicker, dimming compatibility, uplink security, mobility support, and limited throughput. To address these, this paper proposes a systematic solution: (1) a vehicle-to-vehicle VLC channel model incorporating real-world optical propagation characteristics; (2) a dual-mode transceiver architecture leveraging both photodiodes and cameras to enable low-latency, high-reliability short-range communication; (3) a physical-layer security mechanism for secure uplink transmission, integrated with adaptive modulation and dynamic resource allocation to enhance spectral efficiency and throughput; and (4) a comprehensive analysis of standardization pathways and topology deployment strategies. The work culminates in a reusable VLC-based vehicular networking implementation framework and a practical deployment guideline. This provides both theoretical foundations and a technical paradigm for the commercial deployment of VLC in intelligent transportation systems.

Technology Category

• Computer Vision: Interpretability, Explainability, and Transparency
• Planning, Routing, and Scheduling: Optimization of Spatio-temporal Systems
• Application Domains: Mobility, Driving & Flight

Application Category

• Systems and Infrastructure for Web, Mobile and WoT: Virtualization and resource management in Web systems and infrastructures
• Security and Privacy: Large-scale security measurements
• Search and Retrieval-Augmented AI: Vertical and domain-specific search

Abstract

The advent of the fifth-generation technology promises to bring about more vertical applications and emerging services that include vehicular networks and intelligent transportation systems (ITSs). To achieve their vision of real-time and safetyapplications, vehicular networks rely on short-range to medium-range communications. One emerging technology that aims to provide reliability and high-data rate in short-range communications is the visible light communications (VLC). Due to its remarkable advantages, some studies have recently investigated the integration of VLC in vehicular networks and ITSs. Despite their attractive features, such networks also face several implementation issues. This paper provides an extended tutorial on the implementation of VLC-based vehicular networks. To begin with, we present the implementation characteristics of these systems and discuss some related issues. The underlying system considers a general structure with transmitters, channels, and receivers based on photodetectors and cameras, as well as standardization efforts and types of topologies. In addition, we discuss the impact of the sun and artificial light sources, flickering, dimming, throughput enhancement, uplink security, and mobility on practical implementation. Finally, we highlight some key challenges and potential solutions and provide some directions for future research investigations that could constitute an advancement toward the development of commercial VLC-based vehicular systems.

Problem

• Implementing visible light communication for vehicular network reliability
• Addressing practical VLC challenges like sunlight interference and mobility
• Developing standardized VLC systems for intelligent transportation applications

Innovation

• Uses visible light communication for vehicles
• Implements transmitters and photodetector receivers
• Addresses sunlight interference and mobility issues