ABSTRACT
This chapter considers the controllability and observability properties of a class of Networked Control Systems (NCSs). The controllability analysis of NCSs is first considered and then the results are extended to the weaker stabilizability problem. Stabilizability can be easily proved by ensuring that at least all the unstable modes retain controllability. Because of the scheduled communication in NCSs, not only a stabilizing controller needs to be designed but also a communication sequence that preserves stability, controllability and observability when the plant is controlled through a network. Significant attention has been given to the stabilization problem of NCSs under medium access constraints. Because of the scheduled communication, not only does a stabilizing controller need to be designed but also a communication sequence that preserves stability when the plant is controlled through a network.
