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Input-to-state stability of networked control systems. (English) Zbl 1077.93049

In this paper a new class of Lyapunov uniformly globally asymptotically stable (UGAS) protocols in networked control systems (NCS) is considered. It is shown that if the controller is designed without taking into account the network so that it yields input-to-state stability (ISS) with respect to external disturbances, then the same controller will achieve semi-global practical ISS for the NCS when implemented via the network with a Lyapunov UGAS protocol. Moreover, the ISS gain is preserved. The adjustable parameter with respect to which semi-global practical ISS is achieved is the maximal allowable transfer interval between transmission times.

MSC:

93D25 Input-output approaches in control theory
93C73 Perturbations in control/observation systems
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