Robust Feedback Control and Scheduling of Networked Embedded Control Systems

Networked embedded control systems (NECSs) with uncertain but interval-bounded time-varying computation and transmission delays are addressed in this paper. They are modeled as discrete-time switched linear systems with norm-bounded uncertainty. Considering an infinite-horizon quadratic cost function as a performance measure, a novel control and scheduling codesign strategy is proposed and evaluated through a practical example. The proposed strategy can be formulated as an LMI optimization problem for which many efficient solvers are available. Notably, the proposed codesign strategy is generally applicable to discrete-time switched linear systems with norm-bounded uncertainty.