Georgios I. Papadimitriou is a Professor in the School of Informatics, Aristotle University, Greece. He is Head of the School of Informatics and Director of the Network and Communication Systems Laboratory. Prof. Papadimitriou is a Senior Member of the IEEE and holds a PhD degree (1994) and a 5-year Diploma degree (1989) in Computer Engineering and Informatics from the University of Patras. In 1997 he joined the faculty of the School of Informatics, Aristotle University, Greece, where he is currently serving as Professor. He teaches the undergraduate courses: Communication Networks, Digital Communications, Network Security and Network Engineering and the postgraduate courses: Architectures and Security of Optical Networks and Internet Security. He is included in the list of the world’s top 2% of scientists (Stanford University rankings). He has supervised 8 PhD theses and 4 of the PhD Students he supervised are currently faculty members (Full/Associate/Assistant Professors). His major research interests are: Wireless Networks, Optical Networks, Network Security, Biological Nanonetworks, Internet of Things and AI-based Networking. He has published 151 papers in peer-reviewed journals (64 in IEEE Journals) and 171 papers in international conferences. He is author of three books published by Wiley and editor of a book published by Kluwer/Springer. He has served as Associate Editor for the IEEE Network, the IEEE Transactions on Broadcasting, the IEEE Communications Magazine, the IEEE Transactions on Systems, Man and Cybernetics – Part C and the IEEE Sensors Journal. Prof. Papadimitriou has served as Chair/TPC Chair for 4 international Conferences, and as a TPC Member for 70 International Conferences. He also serves as a reviewer for 36 Scientific Journals. He has participated in 23 research projects, some of which as a team leader or coordinator. He serves as evaluator for international and national R&D programs.