Act-and-wait control of discrete systems with random delays

Mohammadreza Ghasemi, Siming Zhao, Tamas Insperger, Tamas Kalmar-Nagy

Research output: Conference contribution

9 Citations (Scopus)


This paper addresses the stabilization of discrete-time linear systems with random delays, which is a common problem in networked control systems. The delays are assumed to be bounded and longer than a sampling time unit. We apply the act-and-wait control concept to stabilize the system: the controller is on for one sampling period (act) and off for some sampling periods (wait). If the waiting period is longer than the maximum delay in the feedback, then the stability can be described by finite number of eigenvalues. Although the closed-loop stability of the stochastic system with the act-and-wait controller is characterized by the Lyapunov exponent of infinite random matrix products, the dimension of these matrices is finite, which results in a significant reduction of computational complexity. The applicability of this method is demonstrated in a simple example, where we compare deterministic stability with the Lyapunov exponent based results.

Original languageEnglish
Title of host publication2012 American Control Conference, ACC 2012
Number of pages4
Publication statusPublished - nov. 26 2012
Event2012 American Control Conference, ACC 2012 - Montreal, QC, Canada
Duration: jún. 27 2012jún. 29 2012

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Other2012 American Control Conference, ACC 2012
CityMontreal, QC


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ghasemi, M., Zhao, S., Insperger, T., & Kalmar-Nagy, T. (2012). Act-and-wait control of discrete systems with random delays. In 2012 American Control Conference, ACC 2012 (pp. 5440-5443). [6315674] (Proceedings of the American Control Conference).