Dr Fabien Heliot is currently a Lecturer at the Institute for Communication Systems (ICS) of the University of Surrey, formerly known as CCSR. He has been actively involved in European Commission (EC) funded projects such as FIREWORKS, ROCKET, SMART-Net, LEXNET projects and in the award-winning EARTH project. He is currently involved in the 5GIC project, a UK funded project on shaping the future of wireless communication. His research interests include EM exposure reduction, energy efficiency, cooperative communication, MIMO, and radio resource management. He received an Exemplary Reviewer Award from IEEE COMMUNICATIONS LETTERS in 2011. Through his involvement in the European Commission funded project LEXNET, a project investigating human exposure to electromagnetic fields induced by wireless telecommunication networks, he has gained a great deal of insights on the current issues and the challenges lying ahead, e.g. massive MIMO, densification, related to EM exposure. Prod Rahim Tafazolli is a professor and the Director of the Institute for Communication Systems (ICS) and 5G Innovation Centre (5GIC), University of Surrey, United Kingdom. He has been active in research for more than 25 years and has authored and co-authored more than 800 papers in refereed international journals and conferences. Professor Tafazolli is a consultant to many mobile companies, has lectured, chaired, and been invited as keynote speaker to a number of IET and IEEE workshops and conferences. He has been Technical Advisor to many mobile companies, all in the field of mobile communications. He is the Founder and past Chairman of IET International Conference on 3rd Generation Mobile Communications. He is a Fellow of the IET and WWRF (Wireless World Research Forum). He is Chairman of EU Expert Advisory Group on NetWorld2020 Technology Platform.