A New Stability Criterion of Networked Control Systems

This paper concerns with robust stability criteria of networked control systems (NCSs) with the effects of both the time-varying network-induced delay and data packet dropout taken into consideration. A less conservative delay-dependent stability condition is formulated in the form of a linear matrix inequality based on a Lyapunov–Krasovskii functional. No slack matrix variables are introduced and overly bounding for some term is avoided. Furthermore, a strict proof is given to show less conservatism of the proposed method.