现代电子技术2025，Vol.48Issue(20)：155-159,5.DOI:10.16652/j.issn.1004-373x.2025.20.024
任务紧急程度约束下的物联网资源优先级卸载方法
Method of priority offloading for IoT resource under constraint of task urgency
摘要
Abstract
The unloading task of resources in the Internet of Things(IoT)has characteristics such as periodicity and non-intermittency,and also requires high latency.In order to ensure the timeliness of IoT resource unloading,a method of priority unloading for IoT resources under the constraint of task urgency is proposed.Based on the delay constraints that meet different tasks,the minimum time average total cost of unloading of IoT resources is taken as the objective function,and the agreed conditions of the objective function are set from the perspectives of unloading decision variables,computing resource allocation,transmission power allocation,and tolerable delay.The objective functionis solved by means of three-stage optimization algorithm,and the stable convergence solution of the objective functionis obtained by means of multiple iterative processes.In the first stage,the particle swarm optimization algorithm is used to optimize the unloading decision and resource allocation strategy.In the second stage,the task scheduling is optimized based on the degree of task progress.In the third stage,the results are optimized based on resource allocation strategy,and the transmission power optimization solution is carried out on the basis of meeting the delay requirements.The experimental results show that the proposed method is better than the comparison method in terms of overall energy consumption and task scheduling time consumption in the process of resource unloading,and it has strong applicability to research objects with high loads.关键词
任务紧急程度/物联网资源/优先级卸载/时延约束/三阶段优化算法/资源卸载任务能耗Key words
task urgency level/Internet of Things resource/priority offloading/delay constraint/three-stage optimization algorithm/resource offloading task energy consumption分类
信息技术与安全科学引用本文复制引用
李玉玲,王祥仲,田立勤,汤海凤,沈桂兰..任务紧急程度约束下的物联网资源优先级卸载方法[J].现代电子技术,2025,48(20):155-159,5.基金项目
河北省重点研发计划项目(19270318D) （19270318D）
河北省物联网监控工程技术研究中心项目(3142018055) （3142018055）
