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DOI: 10.14569/IJACSA.2022.0131188
PDF

A Hybrid Genetic Algorithm for Service Caching and Task Offloading in Edge-Cloud Computing

Author 1: Li Li
Author 2: Yusheng Sun
Author 3: Bo Wang

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 13 Issue 11, 2022.

  • Abstract and Keywords
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Abstract: Edge-cloud computing is increasingly prevalent for Internet-of-thing (IoT) service provisioning by combining both benefits of edge and cloud computing. In this paper, we aim to improve the user satisfaction and the resource efficiency by service caching and task offloading for edge-cloud computing. We propose a hybrid heuristic method to combine the global search ability of the genetic algorithm (GA) and heuristic local search ability, to improve the number of satisfied requests and the resource utilization. The proposed method encodes the service caching strategies into chromosomes, and evolves the population by GA. Given a caching strategy from a chromosome, our method exploits a dual-stage heuristic method for the task offloading. In the first stage, the dual-stage heuristic method pre-offloads tasks to the cloud, and offloads tasks whose requirements cannot be satisfied by the cloud to edge servers, aiming at satisfying as many tasks’ requirements as possible. The second stage re-offloads tasks from the cloud to edge servers, to get the utmost out of limited edge resources. Experimental results demonstrate the competitive edges of the proposed method over multiple classical and state-of-the-art techniques. Compared with five existing scheduling algorithms, our method achieves 11.3%–23.7% more accepted tasks and 1.86%–18.9% higher resource utilization.

Keywords: Cloud computing; edge computing; genetic algo-rithm; service caching; task offloading

Li Li, Yusheng Sun and Bo Wang, “A Hybrid Genetic Algorithm for Service Caching and Task Offloading in Edge-Cloud Computing” International Journal of Advanced Computer Science and Applications(IJACSA), 13(11), 2022. http://dx.doi.org/10.14569/IJACSA.2022.0131188

@article{Li2022,
title = {A Hybrid Genetic Algorithm for Service Caching and Task Offloading in Edge-Cloud Computing},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2022.0131188},
url = {http://dx.doi.org/10.14569/IJACSA.2022.0131188},
year = {2022},
publisher = {The Science and Information Organization},
volume = {13},
number = {11},
author = {Li Li and Yusheng Sun and Bo Wang}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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