Safe and Secure Networked Control Systems under Denial-of-Service Attacks

  • Authors:
  • Saurabh Amin;Alvaro A. Cárdenas;S. Shankar Sastry

  • Affiliations:
  • Systems engineering, University of California, at Berkeley, Berkeley, USA;EECS Department, University of California, at Berkeley, Berkeley, USA;EECS Department, University of California, at Berkeley, Berkeley, USA

  • Venue:
  • HSCC '09 Proceedings of the 12th International Conference on Hybrid Systems: Computation and Control
  • Year:
  • 2009

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Abstract

We consider the problem of security constrained optimal control for discrete-time, linear dynamical systems in which control and measurement packets are transmitted over a communication network. The packets may be jammed or compromised by a malicious adversary. For a class of denial-of-service (DoS) attack models, the goal is to find an (optimal) causal feedback controller that minimizes a given objective function subject to safety and power constraints. We present a semi-definite programming based solution for solving this problem. Our analysis also presents insights on the effect of attack models on solution of the optimal control problem.