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面向电力物联网的边缘计算级联任务卸载策略

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为解决智能电网中电力物联场景下云计算处理终端设备产生的级联任务可能导致的额外时延与能耗,提出了一种面向电力物联网的边缘计算级联任务卸载策略.针对级联任务被分拆后,子任务该如何被卸载进行了研究,首先构建了系统网络、级联任务与双队列模型;其次对传输与卸载产生的时延及能耗进行建模;然后将卸载问题建模为马尔科夫决策过程(MDP),构造了涉及卸载时延与能耗的奖励函数;最终利用值迭代得到使总奖励最大的最优卸载策略.仿真结果表明,提出的策略与传统云服务器卸载、随机卸载和普通MDP卸载策略相比,总奖励有显著优势,可有效满足应用场景的要求.
Cascaded Task Offloading Strategy of Edge Computing for Power Internet of Things
To address the additional latency and energy consumption caused by cascaded tasks generated by terminal devices in power Internet of Things(IoT)scenario through cloud computing in smart grids,a cascaded task offloading strategy of edge computing for power IoT is proposed in this paper.The research focuses on offloading strategies for sub-tasks after cascaded task is split.Firstly,the system network,cascaded task and dual-queue model are constructed.Next,latency and energy consumption caused by transmission and offloading are modeled.Then the offloading problem is mod-eled as a Markov decision process(MDP),and a reward function involving the latency and energy consumption is con-structed.Finally,the optimal offloading strategy that maximizes the total reward is derived using value iteration.

power Internet of Thingsedge computingcascade tasksmarkov decision processvalue iteration

曹强、宣吴丽娜、陈健、张俊杰

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上海大学特种光纤与光接入网重点实验室,上海 200444

电力物联网 边缘计算 级联任务 马尔科夫决策过程 值迭代

2024

工业控制计算机
中国计算机学会工业控制计算机专业委员会 江苏省计算技术研究所有限责任公司

工业控制计算机

影响因子:0.258
ISSN:1001-182X
年,卷(期):2024.37(12)