Redundant data transmission in control/estimation over wireless networks

Authors:
Alexandre Rodrigues Mesquita;João Pedro Hespanha;Girish Nair
Affiliations:
Center for Control, Dynamical Systems and Computation, University of California, Santa Barbara, CA;Center for Control, Dynamical Systems and Computation, University of California, Santa Barbara, CA;Department of Electrical and Electronic Engineering, University of Melbourne, VIC, Australia
Venue:
ACC'09 Proceedings of the 2009 conference on American Control Conference
Year:
2009

Citing 3
Cited 3

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Abstract

In wireless networks the probability of successful communication can be significantly increased by transmitting multiple copies of a same packet. Communication protocols that exploit this by dynamically assigning the number of transmitted copies of the same data can significantly improve the control performance in a networked control system with only a modest increase in the total number of transmissions. In this paper we develop techniques to design communication protocols that exploit multiple packets transmissions while seeking a balance between stability/estimation performance and communication rate. An average cost optimality criterion is employed to obtain optimal protocols. Optimal protocols are also obtained for networks whose nodes are subject to limited computation.