Title: An economic cost-saving strategy based on a hybrid 4G-5G offload architecture in vehicular edge computing

Authors: Lei Shi; Fei Zhao; Shuangliang Zhao; Zengwei Lyu; Yang Zhang

Addresses: School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Centre of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009, China; Hefei Origin IoT Technology Co., Ltd., A-Region of the Intelligent Technology Park North to the Crossing of Susong Road and Guanhai Road, Hefei, China ' School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Centre of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009, China; Hefei Origin IoT Technology Co., Ltd., A-Region of the Intelligent Technology Park North to the Crossing of Susong Road and Guanhai Road, Hefei, China ' School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Centre of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009, China; Hefei Origin IoT Technology Co., Ltd., A-Region of the Intelligent Technology Park North to the Crossing of Susong Road and Guanhai Road, Hefei, China ' School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Centre of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009, China; Hefei Origin IoT Technology Co., Ltd., A-Region of the Intelligent Technology Park North to the Crossing of Susong Road and Guanhai Road, Hefei, China ' School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, 230009, China; Engineering Research Centre of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009, China; Hefei Origin IoT Technology Co., Ltd., A-Region of the Intelligent Technology Park North to the Crossing of Susong Road and Guanhai Road, Hefei, China

Abstract: The excellent transmission performance of 5G provides reliable support for vehicular edge computing (VEC). However, due to the drawbacks of small coverage area and high energy cost of 5G base stations (BSs), long-term usage will bring huge economic costs to service operators. In this paper, we design a new 4G-5G hybrid offload architecture for VEC scenarios. On this basis, we first build the mathematical model and find that it cannot be solved directly. Then we design algorithms for offline and online cases respectively. Simulation results show that our online algorithm (ONA) can significantly reduces the operator's economic cost while achieving a high task success rate, and the effect is better than other comparison schemes. For example, when the number of tasks is 705,600, the economic cost is reduced by 8.47%-48.7% compared to AA, RS and GA scheme.

Keywords: cost saving; 5G; vehicular edge computing; VEC; task offloading; internet of vehicles; IoV.

DOI: 10.1504/IJSNET.2023.133251

International Journal of Sensor Networks, 2023 Vol.42 No.4, pp.227 - 237

Received: 27 Jan 2023
Accepted: 28 Jun 2023
Published online: 03 Sep 2023 *

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