Tutorial 2: Visible Light Communication: An Emerging Technology for Smart City IoT Application

During the last decade, the demand for wireless network services has witnessed an explosive growth owing to the decrease in the cost of mobile electronic devices and increase in number of devices connected. Hence, it requires larger bandwidth wireless network to support more users simultaneously with lower latency and higher data rates for better user experience. Visible Light Communication (VLC) has emerged as a novel optical wireless communication technology with many unique characteristics, such as secure connection, license-free spectrum, data density, no electromagnetic interference, and thus show great potential to support smart city and IoT applications. This tutorial comprehensively presents the advances of VLC and Light Fidelity (Li-Fi) network technologies, discusses the progress in industrial adoptions and explores the opportunities for VLC in smart city applications.

This tutorial will provide an overview of the free-space and underwater VLC technologies and their impact to industry 4.0. The state-of-the-art device and system techniques for vehicular communication, smart factory, secured wireless network, digital ocean, and IoT networks will be discussed. The recent development of laser lighting and VLC system for outdoor intelligent infrastructure, smart traffic, underwater IoT applications will also be presented. The tutorial closes with a demonstration of laser white lighting and VLC system.