可扩展的混合框架,用于实时和非实时任务调度在雾计算使用联合强化学习和PSO GA
Fei Liu1, ZhiLi Liu2, XiaoHong Liu3
1School of Computer Science and Engineering, Hunan University of Information Technology, Changsha Hunan, 410151, China.
Scientific reports
|November 3, 2025
概括
FRAHTOS优化了物联网 (IoT) 任务调度,使用联合增强学习和混合优化. 该框架显著提高了任务完成率,并减少了分散边缘计算应用程序的延迟时间.
科学领域:
- 计算机科学 计算机科学
- 人工智能的人工智能
- 分布式系统 分布式系统
背景情况:
- 雾计算解决了物联网的低延迟和能源需求,但由于异质边缘节点和动态工作负载,它在任务分配方面面临挑战.
- 实时和非实时任务调度要求使雾环境中的高效资源管理复杂化.
研究的目的:
- 引入FRAHTOS,这是一个用于在雾计算环境中智能任务调度的新型框架.
- 解决异质和动态雾基础设施中任务分配的复杂性.
主要方法:
- FRAHTOS集成了马尔科夫决策过程 (MDP) 建模,实时任务的联合强化学习 (FRL),以及非实时任务的粒子群优化-遗传算法 (PSO-GA) 混合.
- 使用自适应变量自编码器 (VAE) 进行特征预处理,使用GMM和DBSCAN进行集群,使用决策树进行标签,使用EDF调度和VARIMA进行负载预测.
主要成果:
- 在iFogSim中的模拟显示,FRAHTOS实现了85-95%的实用性和86-96%的任务完成,延迟时间为3-5.5毫秒.
- 该框架保持能源消耗在50-80mJ之间,适合电池受限制的边缘节点.
结论:
- FRAHTOS为雾计算中的智能物联网任务调度提供了一个强大的,可扩展和适应性的解决方案.
- 拟议的框架有效地管理异质边缘节点和动态工作负载,优于传统的调度方法.
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