International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 04 | Apr 2025
p-ISSN: 2395-0072
www.irjet.net
Vehicle to Vehicle communication using li-fi technology Kodali Ramya1, Mr.abdul azeez2, Chitturi Spandana 3, Appikatla Harish4 , Achanta Satish 5 1Student & AMRITA SAI INSTITUTE OF SCIENCE AND TECHNOLOGY
2Assistant Professor & AMRITA SAI INSTITUTE OF SCIENCE AND TECHNOLOGY 3Student & AMRITA SAI INSTITUTE OF SCIENCE AND TECHNOLOGY 4Student & AMRITA SAI INSTITUTE OF SCIENCE AND TECHNOLOGY 5Student & AMRITA SAI INSTITUTE OF SCIENCE AND TECHNOLOGY ---------------------------------------------------------------------***--------------------------------------------------------------------Keywords: Vehicle-to-Vehicle Communication, Li-Fi Abstract -
Technology, Accident Detection,Emergency Alerts, Proximity Sensing, ADXL345 Accelerometer,Ultrasonic Sensors,Light Fidelity
In the modern era of intelligent transportation systems (ITS), the role of vehicular communication has become increasingly significant in enhancing road safety, minimizing traffic congestion, and providing real-time information to both vehicles and infrastructure. Among various technologies employed for vehicular communication, Light Fidelity (Li-Fi) presents a promising and efficient solution for short-range, high-speed, and secure data transmission. This research paper explores a novel implementation of Vehicle-to-Vehicle (V2V) Communication using Li-Fi Technology, focusing on accident detection, emergency alert dissemination, and proximity-based collision avoidance systems. The objective is to harness the potential of Li-Fi to establish seamless communication between vehicles, thereby improving driver awareness and response time during critical situations.
1.INTRODUCTION The rapid advancement of technology in the 21st century has catalyzed a transformative shift in transportation systems worldwide. With the exponential increase in the number of vehicles on roads, ensuring driver safety, efficient traffic management, and real-time inter-vehicular communication has become a pressing need. According to the World Health Organization (WHO), approximately 1.3 million people die each year due to road traffic crashes, and millions more sustain injuries. These statistics emphasize the urgency of implementing advanced technologies that can proactively reduce accidents, enable faster emergency responses, and enhance situational awareness among drivers. One promising approach to address this critical challenge lies in the development of Vehicle-to-Vehicle (V2V) communication systems, which allow vehicles to share information such as position, speed, direction, and hazard alerts directly with each other.
The proposed system employs a combination of sensors integrated into an embedded system platform to detect different vehicular states and environmental conditions. The ADXL345 accelerometer is used to detect abrupt and high-impact acceleration or deceleration along the X and Y axes, which typically indicate a collision or accident scenario. Simultaneously, an ultrasonic sensor is implemented to measure the distance between vehicles, allowing for real-time proximity monitoring and collision warning in congested or low-visibility environments. A Light Dependent Resistor (LDR) is used to sense ambient light intensity, enabling adaptive alert mechanisms in dim or low-light situations. An emergency push button is incorporated to allow the driver or a passenger to manually trigger an emergency alert in case of sudden health issues, road hazards, or critical mechanical failures.
Traditionally, V2V communication has relied on radio frequency (RF)-based technologies such as Dedicated Short Range Communication (DSRC), ZigBee, and cellular networks. While effective, these technologies face several inherent challenges, including limited spectrum availability, susceptibility to electromagnetic interference, latency issues, and cybersecurity vulnerabilities. Additionally, the growing number of RFbased applications in urban areas has led to increased congestion in the wireless spectrum, which further diminishes the reliability and performance of V2V systems. As a result, researchers and engineers have been exploring alternative communication mediums that can overcome the limitations of RF technologies. One such alternative that has garnered significant attention in recent years is Light Fidelity (Li-Fi).
Data from these sensors is processed by a microcontroller unit, which then transmits corresponding alerts via Li-Fi—a form of visible light communication that uses light-emitting diodes (LEDs) to transmit information. The receiving vehicle, equipped with a photodiode or light sensor, captures this light signal, decodes the transmitted message, and takes appropriate action.
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Li-Fi is a cutting-edge wireless communication technology that uses visible light to transmit data between
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