THIAGARAJAN VISWANATHAN (Ph.D. Manchester), was Director, Indian National Scientific Documentation Centre (INSDOC) and Professor, Department of Electrical Communication Engineering, and Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore. Prior to joining the IISc, he served with distinction the Indian Space Research Organisation in various capacities. An engineer by profession, Professor Viswanathan had rich experience in the design and development of digital computer and communication systems. He had delivered a large number of lectures in different parts of India and abroad and contributed extensively in reputed national and international journals. MANAV BHATNAGAR, Ph.D. in Wireless Communication (University of Oslo, Norway) and M.Tech. in Communications Engineering (Indian Institute of Technology, Delhi), is Associate Professor, Department of Electrical Engineering, Indian Institute of Technology, Delhi. He held visiting appointments with the Wireless Research Group, Indian Institute of Technology, Delhi; the Signal Processing in Networking and Communications (SPiNCOM) Group, University of Minnesota Twin Cities, Minneapolis; the Alcatel-Lucent Chair, SUPÉLEC, France; the Department of Electrical Computer Engineering, Indian Institute of Science at Bangalore, India; UNIK, University of Oslo, Kjeller, Norway; the Department of Communications and Networking, Aalto University, Finland; and INRIA/IRISA Lab, University of Rennes, Lannion, France. An active researcher in the field of wireless communications, Dr. Bhatnagar has published about 100 international research articles including IEEE Transactions, IEEE Letters, and topnotch IEEE International conferences. He was selected as an ‘Exemplary Reviewer’ of the IEEE Communications Letters for 2010 and 2012. He has served as an Editor for the IEEE Transactions on Wireless Communications during 2011–2014.