Rajeev Kumar received his Ph.D. and M. Tech. degrees in Dept. of Electronics & Communication Engineering (ECE) from National Institute of Technology (NIT), Silchar, Assam, India in 2019 and 2015, respectively. He obtained B.Tech. Degree in Dept. of ECE from West Bengal University of Technology (WBUT), Kolkata, West Bengal, India in 2012. He held post as an Assistant Professor (C) in the Dept. of ECE, School of Engineering, Central University of Karnataka (CUK), Kadaganchi, Kalaburagi, Karnataka, India. His current research interests include Cooperative Communications, Wireless sensor Network, Green Technology, Advanced Protocol design, IoT and applications, 5G Communications and Beyond, transceiver design for 6G Communications, and Optimization Theory. He is Reviewer of IEEE Transactions on Communications, IEEE Access, IET Communications, Wireless Personal Communications and Wireless Network, Springer. Dr. Kumar was also, selected as an Exemplary Reviewer of National Conference on Communication (NCC) at IIT Hyderabad for 2017.