33rd NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION "TELECOM 2025"

                              Invited Talks and Papers

          Keynote Lectures

       Cloud, Fog and Mist Computing Collaboration for Scheduling Time-Critical Applications
       State of the Art and Research Challenges

       Helen Karatza
     Professor Emeritus
     Department of Informatics
     Aristotle University of Thessaloniki, Greece
     karatza@csd.auth.gr

Abstract:

The fast expansion of Internet of Things (IoT) applications has highlighted the limitations of traditional cloud computing in managing the immense volumes of data generated by IoT sensors and devices. In response to this challenge, the paradigms of Fog and Mist computing have been developed to mitigate transmission latency. Fog computing extends cloud capabilities to the network edge, positioning computational resources closer to the data sources, thus fulfilling the stringent low-latency requirements. Mist computing, a more resource-efficient variant of fog computing, further reduces latency by deploying computational resources even closer to the IoT layer. Given the inherently time-sensitive nature of most IoT applications and their stringent deadline constraints, the implementation of efficient scheduling algorithms is essential to ensure the timely execution of tasks and the optimization of performance within cloud, fog, and mist computing frameworks. This keynote will explore advanced strategies for addressing the challenges associated with resource allocation and task scheduling in real-time IoT applications across cloud, fog, and mist computing environments, while also examining emerging trends and potential future research directions in this domain.

Bio:

Helen Karatza (senior member of IEEE, ACM, SCS) is a Professor Emeritus in the Department of Informatics at the Aristotle University of Thessaloniki, Greece. Dr. Karatza's research interests include cloud, fog and mist computing, energy efficiency, fault tolerance, resource allocation, scheduling algorithms and real-time distributed systems. Dr. Karatza has authored or co-authored over 260 technical papers and book chapters including seven papers that earned best paper awards at international conferences. She served as an elected member of the Board of Directors at Large of the Society for Modeling and Simulation International. She served as chair and keynote speaker in international conferences. Dr. Karatza is Senior Associate Editor of the Elsevier journal “Simulation Modelling Practice and Theory”, an Editor of “Future Generation Computer Systems” of Elsevier, an Associate Editor of IEEE Transactions on Services Computing and an Editorial Board member of Cluster Computing of Springer. She was Editor-in-Chief of the Elsevier journal “Simulation Modelling Practice and Theory”, Editor-in-Chief of “Simulation Transactions of The Society for Modeling and Simulation International”, Associate Editor of “ACM Transactions on Modeling and Computer Simulation” and Senior Associate Editor of the “Journal of Systems and Software” of Elsevier. She served as Guest Editor of multiple Special Issues in international journals. More info about her activities and publications can be found at: https://karatza.webpages.auth.gr/

33rd NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION "TELECOM 2025"

20 - 21 November 2025