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Prioritization-based delay sensitive task offloading in SDN-integrated mobile IoT network
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DOI：10.1016/j.pmcj.2024.101960.png)
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Due to enormous growth of Internet of Things (IoT) in the last decade, the amount of data generated through smart devices is increasing exponentially. Fog computing has emerged as a potential technology to deal such a huge volume of data in which task offloading is the most important aspect which has attracted significant attention. Many research works have been carried out, however, task offloading with latency sensitivity, reliability and result migration over a mobile user environment is still not widely addressed. In this paper, we propose a method for delay-sensitive and fault minimized task offloading for service requests made through a mobile/vehicular end user environment implemented via Software Defined Network (SDN) controllers integrated with the fog layer. This is a novel multi-phased model involving determining the optimal number of SDN controllers, clustering of the fog nodes (FNs) on the basis of SDN proximities, task prioritization and Gravitational Search Algorithm (GSA) based target FN selection. The simulation outcomes of our proposed approach show that there is a reduction in delay by around 23%-30% and around 60%-80% lesser number of tasks unassigned in each round as compared to two base algorithms.
Keyword:
Task offloading
Clustering
Deadline
Prioritization
Gravitational search algorithm
期刊
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3.5
论文数:
1.5K
被引数:
2.2K
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