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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Networked control over fading channels
DTSTART:20190911T110000
DTEND:20190911T120000
DTSTAMP:20260407T051300Z
UID:f08ef5705fe279566e9b88db442ca826cf63021debcd4e5c2279fb7f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Classical control theory assumes that the communication links 
 connecting plants\, sensors and controllers are perfect\, which however is
  not true in practical applications. The imperfection of communication cha
 nnels would introduce uncertainties into feedback control systems\, which
  might impact the stability and performance of the corresponding control s
 ystem.  This talk focuses on the fading phenomenon in wireless communicat
 ions and studies how channel fading affects the stability of feedback cont
 rol systems. In the first part of this talk\, we consider the mean square
  stabilizability problem of linear systems controlled over power constrain
 ed fading channels\, which suffers from both SNR constraints and the time-
 varying i.i.d. channel fading. We try to characterize channel requirement
 s for the existence of coding and controlling policies that can mean squar
 e stabilize the linear system. We show that there is a fundamental limitat
 ion on the mean square stabilizability for networked control over fading c
 hannels. In the second part of this talk\, we study the consensusability 
 problem of linear multi-agent systems over fading networks. The agents in 
 the multi-agent systems communicate with their neighborhoods through fadin
 g channels. We aim to characterize requirements on the agent dynamics\, c
 hannel capacities and the network topology for the existence of a distribu
 ted consensus controller. The results imply that the consensusability is c
 losely related to the statistics of fading networks\, the eigenratio of th
 e graph\, and the instability degree of the dynamical system. 
LOCATION:ME C2 405 https://plan.epfl.ch/?room==ME%20C2%20405
STATUS:CANCELLED
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