Stability of networked control systems with bounded sampling rates and time delays

In this paper we study stability properties of networked control systems whose control loops are subject to sampling rates and time delays, both time varying. We represent these time incertitudes as non-static parametric uncertainties in the linear discrete-time closed-loop model. Then we apply robust control techniques, and present a sufficient stability condition based on interval algebra methods that allows testing system stability by simply evaluating a time invariant matrix.