期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 62, 期 4, 页码 1729-1741出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2016.2593645
关键词
Discrete-time systems; event-triggered method; Markov processes; multiple-access; networked control systems; performance evaluation; state estimation
资金
- NSF [0846631, CNS-1035655, CNS-1446288]
We consider state estimation for multiple plants across a shared communication network. Each linear time-invariant plant transmits information through the common network according to either a time-triggered or an event-triggered rule. For an event-triggered algorithm with carrier sense multiple access (CSMA), each plant is assumed to access the network based on a priority mechanism. For a time-triggered algorithm combined with time division multiple access (TDMA), each plant uses the network according to a schedule that is decided a priori. Performance in terms of the communication frequency and the estimation error covariance is analytically characterized for event-triggered schemes. Using these characterizations, we show that event-triggered schemes may perform worse than time-triggered schemes when the effect of the communication network is explicitly considered.
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