An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing
Mobile terminal users applications, such as smartphones or laptops, have frequent computational task demanding but limited battery power. Edge computing is introduced to offload terminals' tasks to meet the quality of service requirements such as low delay and energy consumption. By offloading...
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doaj-33d7ac96368b470abe52410ac7d33a8b2021-03-29T23:56:19ZengIEEEIEEE Access2169-35362019-01-01714918214919010.1109/ACCESS.2019.29466838865058An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge ComputingJin Wang0Wenbing Wu1Zhuofan Liao2https://orcid.org/0000-0002-0151-7963Arun Kumar Sangaiah3https://orcid.org/0000-0002-0229-2460R. Simon Sherratt4https://orcid.org/0000-0001-7899-4445Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, ChinaHunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, ChinaHunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, ChinaSchool of Computing Science and Engineering, Vellore Institute of Technology (VIT), Vellore, IndiaSchool of Systems Engineering, University of Reading, Reading, U.K.Mobile terminal users applications, such as smartphones or laptops, have frequent computational task demanding but limited battery power. Edge computing is introduced to offload terminals' tasks to meet the quality of service requirements such as low delay and energy consumption. By offloading computation tasks, edge servers can enable terminals to collaboratively run the highly demanding applications in acceptable delay requirements. However, existing schemes barely consider the characteristics of the edge server, which leads to random assignment of tasks among servers and big tasks with high computational intensity (named as “big task”) may be assigned to servers with low ability. In this paper, a task is divided into several subtasks and subtasks are offloaded according to characteristics of edge servers, such as transmission distance and central processing unit (CPU) capacity. With this multi-subtasks-to-multi-servers model, an adaptive offloading scheme based on Hungarian algorithm is proposed with low complexity. Extensive simulations are conducted to show the efficiency of the scheme on reducing the offloading latency with low energy consumption.https://ieeexplore.ieee.org/document/8865058/Latencyenergyoffloadingedge computing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jin Wang Wenbing Wu Zhuofan Liao Arun Kumar Sangaiah R. Simon Sherratt |
spellingShingle |
Jin Wang Wenbing Wu Zhuofan Liao Arun Kumar Sangaiah R. Simon Sherratt An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing IEEE Access Latency energy offloading edge computing |
author_facet |
Jin Wang Wenbing Wu Zhuofan Liao Arun Kumar Sangaiah R. Simon Sherratt |
author_sort |
Jin Wang |
title |
An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing |
title_short |
An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing |
title_full |
An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing |
title_fullStr |
An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing |
title_full_unstemmed |
An Energy-Efficient Off-Loading Scheme for Low Latency in Collaborative Edge Computing |
title_sort |
energy-efficient off-loading scheme for low latency in collaborative edge computing |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2019-01-01 |
description |
Mobile terminal users applications, such as smartphones or laptops, have frequent computational task demanding but limited battery power. Edge computing is introduced to offload terminals' tasks to meet the quality of service requirements such as low delay and energy consumption. By offloading computation tasks, edge servers can enable terminals to collaboratively run the highly demanding applications in acceptable delay requirements. However, existing schemes barely consider the characteristics of the edge server, which leads to random assignment of tasks among servers and big tasks with high computational intensity (named as “big task”) may be assigned to servers with low ability. In this paper, a task is divided into several subtasks and subtasks are offloaded according to characteristics of edge servers, such as transmission distance and central processing unit (CPU) capacity. With this multi-subtasks-to-multi-servers model, an adaptive offloading scheme based on Hungarian algorithm is proposed with low complexity. Extensive simulations are conducted to show the efficiency of the scheme on reducing the offloading latency with low energy consumption. |
topic |
Latency energy offloading edge computing |
url |
https://ieeexplore.ieee.org/document/8865058/ |
work_keys_str_mv |
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