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A probability preferred priori offloading mechanism in mobile edge computing

Wang, J., Wu, W., Liao, Z., Sherratt, R. S., Kim, G.-j., Alfarraj, O., Alzubi, A. and Tolba, A. (2020) A probability preferred priori offloading mechanism in mobile edge computing. IEEE Access, 8. pp. 39758-39767. ISSN 2169-3536

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To link to this item DOI: 10.1109/ACCESS.2020.2975733

Abstract/Summary

Mobile edge computing (MEC) can provide computation and storage capabilities via edge servers which are closer to user devices (UDs). The MEC offloading system can be viewed as a system where each UD is covered by single or multiple edge servers. Existing works prefer a posterior design when task offloads, which can lead to increased workloads. To investigate the task offloading of edge computing in multi-coverage scenario and to reduce the workload during task offloading, a probability preferred priori offloading mechanism with joint optimization of offloading proportion and transmission power is presented in this paper. We first set up an expectation value which is determined by the offloading probability of heterogeneous edge servers, and then we form a utility function to balance the delay performance and energy consumption. Next, a distributed PRiori Offloading Mechanism with joint Offloading proportion and Transmission (PROMOT) power algorithm based on Genetic Algorithm (GA) is proposed to maximize the utility of UD. Finally, simulation results verify the superiority of our proposed scheme as compared with other popular methods.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences > Biomedical Sciences
Faculty of Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:89240
Publisher:IEEE

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