• Cell-Free Massive MIMO: fundamental limits, power control, pilot assignment, and channel estimation schemes
• Massive (large-scale) MIMO systems: pilot contamination, power efficiency, capacity bounds, channel estimation, and resource allocation
• Physical layer security for Massive MIMO
• Cooperative communications: two-way relay and full-duplex relaying channels
• Millimeter wave technologies in multi-antenna cellular systems

Hien Quoc Ngo received the B.S. degree in electrical engineering from the Ho Chi Minh City University of Technology, Vietnam, in 2007, the M.S. degree in electronics and radio engineering from Kyung Hee University, South Korea, in 2010, and the Ph.D. degree in communication systems from Linkoping University (LiU), Sweden, in 2015. In 2014, he visited the Nokia Bell Labs, Murray Hill, New Jersey, USA. From January 2016 to April 2017, Hien Quoc Ngo was a VR researcher at the Department of Electrical Engineering (ISY), LiU. He was also a Visiting Research Fellow at the School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, UK, funded by the Swedish Research Council.

Hien Quoc Ngo is currently a Reader at Queen's University Belfast, UK, and a UKRI Future Leaders Fellow. His main research interests include massive (large-scale) MIMO systems, cell-free massive MIMO, physical layer security, and cooperative communications. He has co-authored many research papers in wireless communications and co-authored the Cambridge University Press textbook Fundamentals of Massive MIMO (2016).

Dr. Hien Quoc Ngo received the IEEE ComSoc Stephen O. Rice Prize in Communications Theory in 2015, the IEEE ComSoc Leonard G. Abraham Prize in 2017, and the Best PhD Award from EURASIP in 2018. He also received the IEEE Sweden VT-COM-IT Joint Chapter Best Student Journal Paper Award in 2015. He was an IEEE Communications Letters exemplary reviewer for 2014, an IEEE Transactions on Communications exemplary reviewer for 2015, and an IEEE Wireless Communications Letters exemplary reviewer for 2016. He was awarded the UKRI Future Leaders Fellowship in 2019. He was a Guest Editor of IET Communications, special issue on "Recent Advances on 5G Communications" and a Guest Editor of IEEE Access, special issue on "Modelling, Analysis, and Design of 5G Ultra-Dense Networks", in 2017. He has been a member of Technical Program Committees for several IEEE conferences such as ICC, Globecom, WCNC, VTC, WCSP, ISWCS, ATC, ComManTel.

• UKRI Future Leaders Fellowship, 2019
• IEEE Communications Society Leonard G. Abraham Prize in 2017, (the award is given to the best paper that appeared in the IEEE Journal on Selected Areas in Communications over the past three years)
• IEEE Communications Society Stephen O. Rice Prize in 2015, (the award is given to the best paper that appeared in the IEEE Transactions on Communications over the past three years)
• IEEE Sweden VT-COM-IT Joint Chapter Best Student Journal Paper Award, 2015
• IEEE Exemplary Reviewer for the IEEE Transactions on Wireless Communications, 2016
• IEEE Exemplary Reviewer for the IEEE Transactions on Communications, 2015
• IEEE Exemplary Reviewer for the IEEE Communications Letters, 2014
• VR Research Fellow 2016
• Won a Bell-Labs International Ph.D. Program Internship, 2014