通信学报2024，Vol.45Issue(6)：144-159,16.DOI:10.11959/j.issn.1000-436x.2024109
边缘辅助实时应用中信息年龄感知的任务调度
AoI-aware task scheduling in edge-assisted real-time applications
摘要
Abstract
To address the issue where the resource limitations of wireless devices caused state extraction delays that can-not meet the freshness requirements of real-time applications,considering the limited processing capacity of edge nodes,a scheduling method that jointly considered information freshness and real-time performance was proposed.This method initially characterized the task delay before computation and the information freshness after computation by utilizing the system time of the queue and the age of information,respectively.Simultaneously,reasonable deadlines were assigned to each offloaded task to ensure their validity before entering the computation process.Then,the minimum processing rate constraint method was employed to restrict the processing rate during task scheduling,thereby ensuring the real-time na-ture of task scheduling.Finally,the objective of optimizing long-term task scheduling decisions was achieved based on Lyapunov optimization techniques.Simulation results demonstrate the good performance of the proposed method in both scheduling timeliness and system information freshness.关键词
边缘计算/信息年龄/任务调度/截止期限/Lyapunov优化Key words
edge computing/age of information/task scheduling/deadline/Lyapunov optimization分类
信息技术与安全科学引用本文复制引用
王红艳,孙其博,马骁,周傲,王尚广..边缘辅助实时应用中信息年龄感知的任务调度[J].通信学报,2024,45(6):144-159,16.基金项目
国家自然科学基金资助项目(No.62032003,No.U21B2016,No.62372061,No.61921003)The National Natural Science Foundation of China(No.62032003,No.U21B2016,No.62372061,No.61921003) （No.62032003,No.U21B2016,No.62372061,No.61921003）
