Analysis and Synthesis of NCSs with Random Forward Delay
With the development of network technology, more and more networks (e.g., Internet) have been applied to distributed control systems, which are termed as networked control systems (NCSs) [143, 137, 2, 70, 180, 47, 49]. Although the networks make it convenient to control large distributed systems, there are many control issues, which occur in conventional control systems, such as network delay and data dropout, sampling and transmitting methods . To solve these problems, various methods have been developed. In the ADDM (augmented deterministic discrete-time model method) , an augmented deterministic discrete time model methodology has been proposed to control a linear plant over a periodic delay network. The queuing method  has used queuing mechanisms to reshape random network delays in an NCS to deterministic delays such that the NCS becomes time-invariant.
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