电信科学 ›› 2021, Vol. 37 ›› Issue (4): 37-45.doi: 10.11959/j.issn.1000-0801.2021063

• 研究与开发 • 上一篇    下一篇

基于扩展传染病模型和马尔可夫链的物联网可用度评估方法

叶晓彤1, 孙文飞1,2, 沈士根1   

  1. 1 绍兴文理学院计算机科学与工程系,浙江 绍兴 312000
    2 浙江理工大学信息学院,浙江 杭州 310018
  • 修回日期:2021-04-03 出版日期:2021-04-20 发布日期:2021-04-01
  • 作者简介:叶晓彤(1978- ),男,绍兴文理学院计算机科学与工程系讲师,主要研究方向为无线传感器网络、物联网、网络空间安全、博弈论
    孙文飞(1999- ),男,浙江理工大学信息学院硕士生,主要研究方向为物联网、网络空间安全
    沈士根(1974- ),男,博士,绍兴文理学院计算机科学与工程系教授,主要研究方向为无线传感器网络、物联网、网络空间安全、博弈论
  • 基金资助:
    国家自然科学基金资助项目(61772018)

Availability evaluation method for extended epidemic model and Markov chain based IoT

Xiaotong YE1, Wenfei SUN1,2, Shigen SHEN1   

  1. 1 Department of Computer Science and Engineering, Shaoxing University, Shaoxing 312000, China
    2 School of Information Science and Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China
  • Revised:2021-04-03 Online:2021-04-20 Published:2021-04-01
  • Supported by:
    The National Natural Science Foundation of China(61772018)

摘要:

为反映恶意程序传播环境下物联网可用的状态,基于扩展的SEIRD传染病模型和马尔可夫链提出一种物联网可用度评估方法。根据物联网节点的实际状态,扩展经典传染病模型SIR建立SEIRD物联网节点状态转换模型。由物联网节点各个状态之间的动态变化过程,构建物联网节点处于5种状态的概率动力学方程,得到反映各状态转换的马尔可夫矩阵,进一步得到物联网节点的可用度计算方法。以典型的星形和簇形物联网拓扑结构为例,给出整个物联网可用度的评估方法。通过实验,为管理员如何合理部署正常工作节点数、路由数提供建议。研究成果对提高物联网可用度、促进物联网成功应用具有理论指导意义。

关键词: 物联网, 恶意程序, 传染病模型, 马尔可夫链, 可用度

Abstract:

To reflect the availability status of the Internet of things (IoT) under malware diffusion, an availability evaluation method of IoT based on the extended epidemic model SEIRD and Markov chain was proposed.According to actual states of IoT nodes, the classic epidemic model SIR was extended to establish the node state transition model SEIRD.From the dynamic change process of each state of IoT nodes, the dynamic probability equations of IoT nodes belonging to five states were constructed, the Markov matrix reflecting the state transition was obtained, and an availability calculation method of an IoT node was achieved.Taking typical star and cluster IoT topologies as examples, the availability evaluation methods of the whole IoT with different topologies were given.Experiments provide suggestions for administrators how to reasonably deploy the number of normal working nodes and routes.The research results have theoretical significance for improving IoT availability and promoting the successful IoT applications.

Key words: IoT, malware, epidemic model, Markov chain, availability

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