He is serving as the Project Coordinator for the H2020 ITN MSCA VisIoN Project (Visible-Light-Based Interoperability and Networking) and the Action Chair for the COST Action CA19111 NEWFOCUS (European Network on Future Generation Optical Wireless Communication Technologies). He has coedited the book Visible Light Communications: Theory and Applications (CRC Press, 2017). His main research interests include signal processing for wireless communication systems with an emphasis on the physical layer aspects of free-space, underwater, and indoor visible-light optical communications. He was the co-recipient of the 2019 Best Survey Paper Award of the IEEE Communications Society. He is currently serving as the Editor-at-Large for the IEEE Transactions on Communications. He has also served as an Associate Editor for the IET Electronics Letters as well as a Guest Co-Editor for the Optik (Elsevier)