A CONCEPTUAL FRAMEWORK FOR PRACTICAL IMPLEMENTATION OF LI-FI FOR V2V VANET COMMUNICATION

Abstract

The emergence of light fidelity (Li-Fi) has revolutionized the way information are sent from
a source to destination. Despite the expensiveness of Li-Fi, it still found application in most
time critical information transmission between a source and destination due to its fastness.
Consequently, this paper presents a Li-Fi mimic approach for communicating sensed road
anomalies among vehicles in a Vehicular Ad-hoc Network (VANET), towards minimizing
the loss of lives and properties. These entailed the design of a laboratory road model and an
algorithm for sensing road anomalies (potholes and speed bumps) based on light pulse
emitted from an ultrasonic sensor. Furthermore, a Li-Fi mimic concept involving the use of
a laser sensor for transmitting the sensed road anomaly to another vehicle within the
transmission radius having a photodiode embed in it as the receiver and displaying the
corresponding received information accordingly. Experimental results showed that the
proposed Li-Fi mimic approach was able to successful communicate sensed road anomalies
between the transmitted and received vehicle with about 99% accuracy and 1meter apart.
Thus, indicating the potentials of using Li-Fi for communicating sensed road anomalies
among vehicles towards notifying drivers of the presence of road anomalies, in order to
make effective decisions.