Sumit Kundu is a Professor at the Department of Electronics & Communication Engineering, National Institute of Technology, Durgapur, West Bengal, India, where he has been a member of the faculty since receiving his Ph.D. from IIT Kharagpur in 1995. He served as a loaned Assistant Professor at G. S. Sanyal School of Telecommunications, IIT Kharagpur in 2007. His research interests include cognitive radio networks, energy harvesting, wireless ad hoc and sensor networks, and physical layer security in wireless networks, and he has published more than 170 papers in various journals and conferences. He is a reviewer of several IEEE and Elsevier journals. U. Shripathi Acharya is a Professor at the Department of Electronics and Communication Engineering, National Institute of Technology, Karnataka, India. He received his Ph.D. from the Indian Institute of Science, Bangalore in 2004. His research interests include theory and applications of error control codes, wireless communication, analog and digital communication, free space optic communication, consumer and professional electronics, and he has published more than 70 papers in various journals and conferences. Chanchal Kr. De is an Associate Professor at the Department of Electronics and Communication Engineering, Haldia Institute of Technology, West Bengal, India. He received his Ph.D. from National Institute of Durgapur in 2015. He has 11 years of teaching experience. His research interests include radio resource management in wireless networks, OFDM technology, cooperative communication and cognitive radio networks and he has published more than 20 research articles in various journals and conferences. Surajit Mukherjee is an Assistant Professor at the Department of Electronics and Communication Engineering, Haldia Institute of Technology, West Bengal, India. He has 9 years of teaching experience. His research interests include antenna design and RF systems design, and he has published six journal papers and five conference papers.