On the trade-off between control performance and communication cost in event-triggered control
Abstract
We consider a stochastic system where the communication between the controller and the actuator is triggered by a threshold-based rule. The communication is performed across an unreliable link that stochastically erases transmitted packets. To decrease the communication burden, and as a partial protection against dropped packets, the controller sends a sequence of control commands to the actuator in each packet. These commands are stored in a buffer and applied sequentially until the next control packet arrives. In this context, we study dead-beat control laws and compute the expected linear-quadratic loss of the closed-loop system for any given event-threshold. Furthermore, we provide analytical expressions that quantify the trade-off between the communication cost and the control performance of event-triggered control systems. Numerical examples demonstrate the effectiveness of the proposed framework.
Cite
@article{arxiv.1501.00892,
title = {On the trade-off between control performance and communication cost in event-triggered control},
author = {Burak Demirel and Vijay Gupta and Daniel E. Quevedo and Mikael Johansson},
journal= {arXiv preprint arXiv:1501.00892},
year = {2015}
}