A computing allocation strategy for Internet of things' resources based on edge computing. (December 2021)

• Record Type: Journal Article
• Authors: Zhang, Zengrong
• Is Part Of: International journal of distributed sensor networks. Volume 17:Number 12(2021)
• Publication Date: 2021-12
• Subjects: Mobile edge computing -- task offloading -- resource allocation -- reinforcement learning -- Internet of things -- computing resources -- edge server; Sensor networks -- Periodicals; Intelligent agents (Computer software) -- Periodicals; Multisensor data fusion -- Periodicals; 681.2
• DOI: 10.1177/15501477211064800
• Languages: English
• ISSNs: 1550-1329

Abstract

In order to meet the demand for efficient computing services in big data scenarios, a cloud edge collaborative computing allocation strategy based on deep reinforcement learning by combining the powerful computing capabilities of cloud is proposed. First, based on the comprehensive consideration of computing resources, bandwidth, and migration decisions, an optimization problem is constructed that minimizes the sum of all user task execution delays and energy consumption weights. Second, a dynamic offloading scheduling algorithm based on Q -learning is proposed based on the optimization problem. This algorithm makes full use of the computing power for cloud and edge, which effectively meets the demand for efficient computing services in Internet of Things' scenarios. Finally, facing the environment dynamic changes of edge nodes in edge cloud, the algorithm can adaptively adjust the migration strategy. Experiments show that when the number of Internet of Things' devices is 30, the total energy consumption of Internet of Things' devices of proposed algorithm is reduced by 24.67% and 19.44%, respectively, compared with other algorithms. The experimental results show that proposed algorithm can effectively improve the success rate of task offloading and execution, which can reduce the local energy consumption.