Jorge Cortés
Professor
Cymer Corporation Endowed Chair
Event-triggered control under time-varying rate and channel blackouts
P. Tallapragada, M. Franceschetti, J. Cortés
Allerton Conference on Communications, Control, and Computing, Monticello, Illinois, USA, 2015, pp. 604-611
Abstract
This paper addresses the problem of event-triggered control of
linear time-invariant systems over time-varying rate limited
communication channels, including the possibility of channel
blackouts, which are intervals of time when the communication
channel is unavailable for feedback. In order to design an effective
event-triggered controller that operates successfully even in the
presence of blackouts, we analyze the channel data capacity, which
is the total maximum number of bits that could be communicated over
a given time interval. We provide an efficient real-time algorithm
to estimate the channel capacity for a time-slotted model of channel
evolution. Equipped with this algorithm we then propose an
event-triggering scheme, which using prior knowledge of the channel
information, guarantees exponential stabilization at a desired
convergence rate despite intermittent channel blackouts. The
contributions are the notion of channel blackouts, the effective
control despite their occurrence, and the analysis and
quantification of the data capacity for a class of time-varying
continuous-time channels.
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Mechanical and Aerospace Engineering,
University of California, San Diego
9500 Gilman Dr,
La Jolla, California, 92093-0411
Ph: 1-858-822-7930
Fax: 1-858-822-3107
cortes at ucsd.edu
Skype id:
jorgilliyo