A1 Journal article (refereed)
Resource Allocation and Computation Offloading for Wireless Powered Mobile Edge Computing (2022)

Chen, J., Chang, Z., Guo, W., & Guo, X. (2022). Resource Allocation and Computation Offloading for Wireless Powered Mobile Edge Computing. Sensors, 22(16), Article 6002. https://doi.org/10.3390/s22166002

JYU authors or editors

Publication details

All authors or editors: Chen, Jun; Chang, Zheng; Guo, Wenlong; Guo, Xijuan

Journal or series: Sensors

eISSN: 1424-8220

Publication year: 2022

Publication date: 11/08/2022

Volume: 22

Issue number: 16

Article number: 6002

Publisher: MDPI AG

Publication country: Switzerland

Publication language: English

DOI: https://doi.org/10.3390/s22166002

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/82820

Abstract

In this paper, we investigate a resource allocation and computation offloading problem in a heterogeneous mobile edge computing (MEC) system. In the considered system, a wireless power transfer (WPT) base station (BS) with an MEC sever is able to deliver wireless energy to the mobile devices (MDs), and the MDs can utilize the harvested energy for local computing or task offloading to the WPT BS or a Macro BS (MBS) with a stronger computing server. In particular, we consider that the WPT BS can utilize full- or half-duplex wireless energy transmission mode to empower the MDs. The aim of this work focuses on optimizing the offloading decision, full/half-duplex energy harvesting mode and energy harvesting (EH) time allocation with the objective of minimizing the energy consumption of the MDs. As the formulate problem has a non-convex mixed integer programming structure, we use the quadratically constrained quadratic program (QCQP) and semi-definite relaxation (SDR) methods to solve it. The simulation results demonstrate the effectiveness of the proposed scheme.

Keywords: resource allocation; wireless data transmission; mobile devices

Free keywords: mobile edge computing; offloading; wireless power transfer; full-duplex; half-duplex

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

JUFO rating: 1