Journal article

Redundant data transmission in control/estimation over lossy networks

Alexandre R Mesquita, Joao P Hespanha, Girish N Nair



In lossy networks the probability of successful communication can be significantly increased by transmitting multiple copies of a same message through independent channels. In this paper we show that 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. We develop techniques to design communication protocols that exploit the transmission of multiple packets while seeking a balance between stability/estimation performance and communication rate. An average cost optimality criterion is em..

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Awarded by NSF

Awarded by Inst. for Collaborative Biotechnologies through the US ARO

Awarded by CAPES (Brazil)

Funding Acknowledgements

This work was partially supported by the NSF Grant CNS-0720842 and by the Inst. for Collaborative Biotechnologies through the US ARO grant W911NF-09-D-0001. A.R. Mesquita was partially funded by CAPES (Brazil) grant BEX 2316/05-6. The material in this paper was not presented at any conference. This paper was recommended for publication in revised form by Associate Editor Denis Dochain under the direction of Editor Frank Allgower.