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/
Invited Talks and Papers
UAVs as an Interim Communication Solution in Cases of Emergency
Prof. Dr. Ivan Ganchev University of Plovdiv “Paisii Hilendarski”, Plovdiv, Bulgaria
Institute of Mathematics and Informatics – Bulgarian Academy
of Sciences, Sofia, Bulgaria
TRC/ECE, University of Limerick, Limerick, Ireland Ivan.Ganchev@ieee.org
Abstract:
The increasing frequency and severity of both natural disasters and man-caused accidents—ranging from earthquakes to floods, wildfires, pandemics, and infrastructure failures—have exposed the limitations and vulnerabilities of traditional communication systems. During such critical events, timely and reliable dissemination of emergency information is vital to coordinating rescue efforts, guiding civilians, and mitigating loss of life and property. In recent years, Unmanned Aerial Vehicles (UAVs) have emerged as a transformative solution for emergency communications, providing versatile, rapid, and adaptable capabilities that extend traditional communication networks’ reach and resilience.
This keynote presents a comprehensive, analytical exploration of the use of UAVs as an interim communication solution in cases of emergency. It covers deployment strategies, communications technologies, smart coordination algorithms, and integration with satellite communication systems. The keynote also incorporates in-depth discussions using real-world examples from China, Japan, Australia, USA, etc. It assesses urban versus rural adaptations, comparative effectiveness to traditional methods, and examines key future trends, drawing on a wide spectrum of up-to-date R&D efforts and case studies.
Bio:
Prof. Ivan Ganchev is a Senior Member of the Institute of Electrical and Electronic Engineers (IEEE); the IEEE Communications Society (Essential); the IEEE Computer Society Special Technical Communities on: (i) Smart and Circular Cities, (ii) Wearable and Ubiquitous Computing, and (iii) Reliable, Safe, Secure and Time Deterministic Intelligent Systems; the IEEE Computer Society Technical Communities on: (i) Intelligent Informatics, (ii) Big Data, and (iii) Internet of Everything; the IEEE Computer Society Technical Committees on: (i) Internet, (ii) Computer Communications, and (iii) Cloud Computing; the IEEE Communities on: (i) Cloud Computing, (ii) Big Data, (iii) Future Networks, (iv) Internet of Things, and (v) IEEE Smart Cities; and the IEEE Consultants Network. He received his doctoral and engineering (summa cum laude) degrees from the Saint-Petersburg University of Telecommunications in 1995 and 1989, respectively. He is an International Union of Radio Science (URSI) Senior Member, an International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) Invited Expert, and an Institution of Engineering and Technology (IET) Invited Lecturer.
Prof. Ganchev was involved in 40+ international and national research projects. Previously he served as a member of the EU FP5 Academic Network for Wireless Internet Research in Europe (ANWIRE) and 8 European ‘COoperation in Science and Technology’ (COST) Actions: COST 285 “Modelling and Simulation Tools for Research in Emerging Multi-service Telecommunications”, COST 290 “Traffic and QoS Management in Wireless Multimedia Networks”, IC0906 “Wireless Networking for Moving Objects (WiNeMO)”, IC0905 “Techno-Economic Regulatory Framework for Radio Spectrum Access for Cognitive Radio/Software Defined Radio (TERRA)”, IC1304 “Autonomous Control for a Reliable Internet of Services (ACROSS)”, IC1303 “Algorithms, Architectures and Platforms for Enhanced Living Environments (AAPELE)”, CA15127 “Resilient Communication Services Protecting End-User Applications from Disaster-based Failures (RECODIS)”, CA16226 “Indoor Living Space Improvement: Smart Habitat for the Elderly (SHELD-ON)”. Currently he is a Management Committee Member (MCM) of the COST Actions CA23126 “Warning Communication Knowledge Network (AlertHub)” and CA24144 “Extended-range Multi-hazard Predictions and Early Warnings (ANTICIPATE)”.
Prof. Ganchev’s research interests include novel telecommunication and information paradigms; modelling, simulation, and emulation of complex telecommunication and information systems, networks, and services; smart networks and services; smart ubiquitous networking; Internet of Things (IoT); Internet of Services; Internet tomography.
Prof. Ganchev has served on the Technical Program Committee of 400+ prestigious international conferences, symposia, and workshops. He has authored/co-authored 1 monographic book, 3 textbooks, 4 edited books, and 350+ research papers in refereed international journals, books, and conference proceedings. He was a recipient of IEEE IAEAC 2017 Best Paper Award and IEEE IS 2012 Best Paper Award, and was nominated for the ITU-T Kaleidoscope 2008 Best Paper Award. He has given over 40 keynote/plenary/invited talks and public lectures at international conferences, universities, and research institutions.
Prof. Ganchev is an Area Editor of the Elsevier “Computer Networks” journal, an Academic Editor of the Wiley “Wireless Communications and Mobile Computing” journal, an Editorial Board Member of the MDPI “Electronics” and Wiley “Internet Technology Letters” journals, a Regional Editor (Europe) of the International Journal on Trust Management in Computing and Communications, and an Advisory Board Member of the MDPI “Engineering Proceedings” journal. He also seats on the Editorial Board of and has served as a Guest Editor for multiple prestigious international journals.
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