Networked Control under Random and Malicious Packet Losses

Ahmet Cetinkaya, Hideaki Ishii, Tomohisa Hayakawa

Research output: Contribution to journalArticlepeer-review

121 Citations (Scopus)

Abstract

We study cyber security issues in networked control of a linear dynamical system. Specifically, the dynamical system and the controller are assumed to be connected through a communication channel that face malicious attacks as well as random packet losses due to unreliability of transmissions. We provide a probabilistic characterization for the link failures which allows us to study combined effects of malicious and random packet losses. We first investigate almost sure stabilization under an event-triggered control law, where we utilize Lyapunov-like functions to characterize the triggering times at which the plant and the controller attempt to exchange state and control data over the network. We then provide a look at the networked control problem from the attacker's perspective and explore malicious attacks that cause instability. Finally, we demonstrate the efficacy of our results with numerical examples.

Original languageEnglish
Article number7574308
Pages (from-to)2434-2449
Number of pages16
JournalIEEE Transactions on Automatic Control
Volume62
Issue number5
DOIs
Publication statusPublished - 2017 May
Externally publishedYes

Keywords

  • communication networks
  • Cyber-security of control systems
  • event-triggered control
  • network security
  • networked control systems
  • packet loss
  • stochastic systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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