Light Fidelity based Vehicular Access System

Abstract

The automobile industry has evolved in its technology in the past few decades. The technology has become so advanced that without any mechanical operations, one can access the vehicle from distance. Such technology includes the use of the parts of electromagnetic (EM) Spectrum which are not visible to the human eye. This includes the use of Radio Waves, which have higher frequencies. Some of the common examples using this technique include Cellular Communication and Wireless Fidelity (Wi-Fi). This evolution has majorly impacted the method of accessing vehicles. The automotive industry majorly uses two different ranges of frequencies, low frequency (LF) and radio frequency (RF). Since LF have longer wavelengths, the size of the antenna becomes significant, as compared to RF, leading to bulky hardware and additional cost. To minimize the bulkiness of the system and its cost, it is better to use higher frequencies than LF by using the other frequency ranges of the EM spectrum. This technique is known as Visible Light Communication (VLC) majorly focuses on the usage of visible light from the EM spectrum. This paper focuses on one of the popular applications of VLC, called Light Fidelity (Li-Fi) for communication between vehicle and the user for remote locking and unlocking. The scope of this research work is to develop a low-cost vehicular access system using Li-Fi technology.