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Less Carbon Footprint in Edge Computing by Joint Task Offloading and Energy Sharing
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Computing Science.ORCID iD: 0000-0001-7306-8354
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Computing Science. Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.ORCID iD: 0000-0002-6025-3515
School of Computer Science and Technology, Soochow University, Suzhou, China.ORCID iD: 0000-0003-0122-5247
Department of Engineering Technology, Technical University of Denmark, Ballerup, Denmark.ORCID iD: 0000-0002-4741-0715
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2023 (English)In: IEEE Networking Letters, E-ISSN 2576-3156, Vol. 5, no 4, p. 245-249Article in journal (Refereed) Published
Abstract [en]

We address reducing carbon footprint (CF) in the context of edge computing. The carbon intensity of electricity supply largely varies spatially as well as temporally. We consider optimal task scheduling and offloading, as well as battery charging to minimize the total CF. We formulate this optimization problem as a mixed integer linear programming model. However, we demonstrate that, via a graph-based reformulation, the problem can be cast as a minimum-cost flow problem, and global optimum can be admitted in polynomial time. Numerical results using real-world data show that optimization can reduce up to 83.3% of the total CF.

Place, publisher, year, edition, pages
IEEE, 2023. Vol. 5, no 4, p. 245-249
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:uu:diva-555956DOI: 10.1109/lnet.2023.3286933Scopus ID: 2-s2.0-85188618692OAI: oai:DiVA.org:uu-555956DiVA, id: diva2:1956764
Funder
Swedish Research Council, 101086219Available from: 2025-05-07 Created: 2025-05-07 Last updated: 2025-05-07Bibliographically approved
In thesis
1. Selected Topics on Optimal Allocation and Configuration in Mobile Computing for 5G and Beyond
Open this publication in new window or tab >>Selected Topics on Optimal Allocation and Configuration in Mobile Computing for 5G and Beyond
2025 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This dissertation explores optimal allocation and configuration in mobile computing for 5G and beyond. As wireless technologies rapidly evolve, emerging technologies such as integrated terrestrial, aerial, and satellite networks (ITASNs), integrated sensing and communication (ISAC), reconfigurable intelligent surfaces (RIS), edge computing, AI-driven networking, cell-free multiple-input multiple-output (MIMO), movable antenna systems, and passively cooled base stations (PCBS) are reshaping network design. These innovations promise significant improvements in capacity, energy efficiency, and sustainability, but also introduce challenges in resource allocation and configuration.

The bulk of this dissertation comprises five research papers that address key resource allocation and configuration problems for some of the evolving technologies. Paper I presents a novel framework for jointly optimizing RIS configuration and resource allocation in multi-cell networks. Paper II investigates content caching in edge computing, proposing a column generation-based approach for balancing cost and data freshness. Paper III examines renewable energy management in edge computing networks to minimize the carbon footprint while maintaining performance. Papers IV and V focus on thermal management in PCBS, with Paper IV developing an online reinforcement learning method for dynamic load allocation in a single base station and Paper V extending this approach to multi-cell scenarios with inter-cell interference and resource coupling.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2025. p. 69
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 2550
Keywords
Mathematical Optimization, Resource Allocation and Configuration, Mobile Networks.
National Category
Computer Sciences
Identifiers
urn:nbn:se:uu:diva-555957 (URN)978-91-513-2505-7 (ISBN)
Public defence
2025-08-22, 101121, Sonja Lyttkens, Ångström, Regementsvägen 10, Uppsala, 13:15 (English)
Opponent
Supervisors
Available from: 2025-06-02 Created: 2025-05-07 Last updated: 2025-06-03

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Yu, ZhanweiZhao, YiYuan, Di

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