Dr. Renhai Feng received his Ph.D. degree from the School of Information Science and Technology, Sun Yat-sen University, in 2014. Dr. Feng was a Postdoctoral Fellow at the Department of Electronic Engineering of Shenzhen University from 2014 to 2017. Since September 2017, he has been working in the School of Electrical Automation and Information Engineering at Tianjin University as an Associate Professor and a Master Supervisor. His research interests mainly focus on Visible light communication, RFID, Network topology identification, Software defined radio, and Smart grid.