Security Analysis of Linearization for Nonlinear Networked Control Systems under DoS

Rui Kato, Ahmet Cetinkaya, Hideaki Ishii

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We explore a security analysis of nonlinear networked control systems under denial-of-service (DoS) attacks. In particular, we focus on the vulnerability of a linearization approach in a stabilization problem. When linearization-based control is used, DoS attacks can make the state leave the region of attraction. This situation can occur when the initial state lies outside a certain region around the equilibrium, the size of which depends on the strength of the attacks on the network. In this article, we first derive a sufficient condition for local stability of a nonlinear system under averagely constrained DoS attacks. Then, we investigate the region of attraction and derive an explicit relation between the initial states and the DoS parameters to guarantee convergence of the state trajectories. Furthermore, we investigate a destabilization problem from the perspective of malicious attackers and present an instability condition. By a numerical example, we demonstrate a new insight foattackers to induce undesired behaviors of the control system.

Original languageEnglish
Pages (from-to)1692-1704
Number of pages13
JournalIEEE Transactions on Control of Network Systems
Issue number4
Publication statusPublished - 2021 Dec 1
Externally publishedYes


  • Denial-of-service (DoS) attacks
  • linearization
  • networked control systems
  • nonlinear systems
  • stability analysis

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Computer Networks and Communications
  • Control and Optimization


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