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Joint Optimization of Offloading and Resources Allocation in Secure Mobile Edge Computing Systems

Wang, Jun-Bo, Yang, Hui, Cheng, Ming, Wang, Jin-Yuan, Lin, Min, Wang, Jiangzhou (2020) Joint Optimization of Offloading and Resources Allocation in Secure Mobile Edge Computing Systems. IEEE Transactions on Vehicular Technology, 69 (8). pp. 8843-8854. ISSN 0018-9545. (doi:10.1109/TVT.2020.2996254) (KAR id:83105)

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Official URL:
https://doi.org/10.1109/TVT.2020.2996254

Abstract

Mobile edge computing (MEC) has become a promising technology for real-time communications. Mobile devices can reduce the energy consumption and prolong the lifetime significantly via offloading the computing tasks to the MEC server. Moreover, physical layer security techniques can ensure the secure transmission of the offloading data. This paper investigates a MEC system that consists of an access point, multiple mobile devices and a malicious eavesdropper. The tasks allocation, local central processor's frequency, offloading power, and offloading timeslots are optimized jointly to minimize the total energy consumption of the system. A difference of convex algorithm based scheme is proposed to solve the joint optimization problem. Moreover, a Karush Kuhn Tucker conditions based algorithm is also proposed to reduce the computational complexity. Numerical results show that the proposed algorithms are very effective. Moreover, the power consumption for secure offloading decreases with the increase of the distance between the mobile devices and the eavesdropper.

Item Type: Article
DOI/Identification number: 10.1109/TVT.2020.2996254
Uncontrolled keywords: Computation offloading, energy consumption, mobile edge computing, physical layer security, resource allocation
Subjects: Q Science
T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Jiangzhou Wang
Date Deposited: 24 Sep 2020 09:12 UTC
Last Modified: 09 Dec 2022 02:40 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/83105 (The current URI for this page, for reference purposes)
Wang, Jiangzhou: https://orcid.org/0000-0003-0881-3594
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