Dr. Athina Bourdena received her Doctoral degree from the Department of Information & Communication Systems Engineering of the University of the Aegean in 2013. She acts as a research associate at the Department of Business Administration & Tourism of Hellenic Mediterranean University (HMU) and as a member of the Research and Development of Telecommunications Systems laboratory. Her research interests are in the fields of network resource optimisation techniques and their exploitation over cognitive radio systems, intelligent technologies, dynamic spectrum access technologies and transport mechanisms. She has more than 50 publications in international journals, conference and workshop proceedings, in the above areas. Dr. Constandinos X. Mavromoustakis is currently a Professor at the Department of Computer Science at the University of Nicosia, Cyprus. He received a five-year dipl.Eng in Electronic and Computer Engineering from Technical University of Crete, Greece, MSc in Telecommunications from University College of London, UK, and his Ph.D. from the department of Informatics at Aristotle University of Thessaloniki, Greece. Dr. Mavromoustakis is leading the Mobile Systems Lab. (MOSys Lab) at the Department of Computer Science at the University of Nicosia, dealing with design and implementation of hybrid wireless testbed environments, high performance cloud and mobile cloud computing (MCC) systems, IoT/IoE, modeling and simulation of mobile computing environments and protocol development and deployment for large-scale heterogeneous networks as well as new ‘green’ mobility-based protocols. He has worked as a Research Associate and Postdoctoral Researcher at the Computer Architecture and Communications Lab at the PDSG (Parallel and Distributed Systems Group) at the Department of Informatics, Aristotle University of Thessaloniki, Greece. He has also worked as a Visiting faculty/Special Expert Scientist (2009-2010) at the Cyprus University of Technology at the Department of Electrical Engineering and Information Technologies (EEIT) and he has been appointed for a semester as a visiting Assistant Professor (2011) at the Coventry University, at the Faculty of Engineering, at the Department of Computing and the Digital Environment, UK. He has authored/edited four Books to-date, whereas he is a management member of IEEE Communications Society (ComSoc) Radio Communications Committee (RCC) and served as track Chair and co-Chair of various IEEE International Conferences (including AINA, IWCMC, IEEE Internet of Things etc). He is the recipient of various grants including the highly competitive European grant of Early Stage Researcher (ESR), for the excellent research output and research impact, in December 2013 (EU secretariat/Brussels). Dr. Evangelos Markakis holds a PhD in P2P Constellations in Broadcast Networks from the Department of Information & Communication Systems Engineering of the University of the Aegean and serves as an Assistant Professor in the Department of Electrical and Computer Engineering at the Hellenic Mediterranean University, Greece. He has actively participated in more than 40 EU FP5/FP6/FP7/Horizon2020, Horizon Europe funded projects (IST/ICT/Health/ Security) and over 20 Greek funded research and Development projects. Evangelos is the Technical Manager for the Horizon Europe TRUSTEE Project and in the past, he was the Technical Manager for the HORIZON 2020 DRS-19-2014 “EMYNOS". He has worked Numerous times as WP Leader in European funded projects. His research activities include Cybersecurity, Wireless Networks, distributed systems and P2P applications, design of large-scale Heterogeneous Networks, Fog Computing & Networking, as well as in network management and virtualisation techniques, including SDN/NFV concepts. He has more than 90 publications in international journals, conference, and workshop proceedings, in the above areas. He is a Member in EENA a Member of IEEE and IEEE ComSoc, editor of the IET Book on “Cloud andFog Computing in 5G Mobile Networks: Emerging Advances and Applications” and the Panel Co-Chair for the IEEE SDN-NFV Conference. He is an Expert on Contract from European Commision, the European Union Agency for Cybersecurity (ENISA) and the European Telecommunications Standard Institute (ETSI) in the work he is doing in Evaluation of Proposals, Cybersecurity and Public safety respectively. He is the Chairman of the Pan-European Emergency Application Consortium paving the way for supporting Emergency Communication Application in all European Member States, and acts as co-chair of Operation Testbeds of IEEE Public safety task force. Dr. George Mastorakis received his B.Eng. (Honours) in Electronic Engineering from UMIST (University of Manchester Institute of Science & Technology) in 2000, his M.Sc. in Telecommunications from UCL (University College London) in 2001 and his Ph.D. in Telecommunications from University of the Aegean in 2008. He currently serves as an Associate Professor in the Department of Management Science and Technology at Hellenic Mediterranean University in Greece and as a Director of e-Business Intelligence Laboratory. He has actively participated in a large number of EU funded research projects (FP6, FP7 and Horizon2020) and national research ones. He has also acted as a technical manager in many research projects funded by GSRT (General Secretariat for Research & Technology, Ministry of Development, Greece). He has more than 300 publications at various international conferences proceedings, workshops, scientific journals and book chapters. He has acted as a reviewer for several scientific journals and member of conferences technical program committees. He is also author/editor of more than ten books. His research interests include cognitive radio networks, IoT applications, IoE architectures, radio resource management, Artificial Intelligence applications, Internet of Vehicles technologies and 5G mobile networks. Dr. Evangelos Pallis is a Professor in Department of Industrial Design and Production Engineering and the University of West Attica, Greece. He received his B.Sc. in Electronic Engineering from the Technological Educational Institute of Crete in 1994, his M.Sc. in Telecommunications from University of East London, in 1997, and received his Ph.D. in Telecommunications from the University of East London in 2002. His research interests are in the fields of wireless networks, mobile communication systems, digital broadcasting technologies and interactive television systems, QoS/QoE techniques and network management technologies. He has participated in a number of national and European funded R&D projects, including the AC215 “CRABS”, IST-2000-26298 "MAMBO", IST-2000-28521 "SOQUET", IST-2001-34692 “REPOSIT”, IST-2002-FP6-507637 “ENTHRONE”, “IMOSAN”, and as Technical/Scientific coordinator for the IST-2002-FP6-507312 “ATHENA” project. He has been involved within the FP7- 214751 “ADAMANTIUM”, in the FP7-ICT-224287 “VITAL++” and in the FP7-ICT-248652 “ALICANTE” projects and several HORIZON2020 projects. He has more than 200 publications in international scientific journals, conference papers and book-chapters in the above scientific areas. He is the general chairman of the international conference on Telecommunications and Multimedia (TEMU), member of IET/IEE, and active contributor to the IETF interconnection of content distribution networks (CDNi).