Cheng-Xiang Wang received the BSc and MEng degrees in Communication and Information Systems from Shandong University, China, in 1997 and 2000, respectively, and the PhD degree in Wireless Communications from Aalborg University, Denmark, in 2004. He has been with Heriot-Watt University, Edinburgh, UK since 2005, and became a Professor in Wireless Communications in 2011. He is also an Honorary Fellow of the University of Edinburgh, UK, a Chair Professor of Shandong University, and a Guest Professor of Southeast University, China. He was a Research Fellow at the University of Agder, Grimstad, Norway, from 2001-2005, a Visiting Researcher at Siemens AG-Mobile Phones, Munich, Germany, in 2004, and a Research Assistant at Hamburg University of Technology, Hamburg, Germany, from 2000-2001. His current research interests focus on wireless channel measurements/modelling and (B)5G wireless communication networks, including green communications, cognitive radio networks, high mobility communication networks, massive MIMO, millimeter wave communications, and visible light communications. He has co-authored 2 books, 1 book chapter, and over 320 papers in refereed journals and conference proceedings. Prof. Wang has served as an editor for 9 international journals, including the IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY (since 2011), IEEE TRANSACTIONS ON COMMUNICATIONS (since 2015), and the IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (2007--2009). He was the lead Guest Editor for the IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, Special Issue on Vehicular Communications and Networks. He was also a Guest Editor for the IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, Special Issue on Spectrum and Energy Efficient Design of Wireless Communication Networks and Special Issue on Airborne Communication Networks, and a Guest Editor for the IEEE TRANSACTIONS ON BIG DATA, Special Issue on Wireless Big Data. He has served as a Technical Program Committee (TPC) Member, TPC Chair, and General Chair for over 80 international conferences. He received 9 Best Paper Awards from IEEE Globecom 2010, IEEE ICCT 2011, ITST 2012, IEEE VTC 2013-Spring, IWCMC 2015, IWCMC 2016, IEEE/CIC ICCC 2016, and WPMC 2016. He is a Fellow of the IEEE, IET, and HEA. He is recognized as a Web of Science 2017 Highly Cited Researcher.