Dynamic output feedback control for networked systems subject to communication delays, packet dropouts, and quantization

In this paper, the dynamic output feedback control problem for uncertain network control systems in the presence of constraints on network communication channels is investigated. These limitations include time-varying delays, packet dropouts, and quantization in both communication channels from sensorto-controller and controller-to-plant. Packet dropouts are modeled by i.i.d Bernoulli processes. Also, logarithmic quantization and time-interval delays are considered in the communication network. To ensure the robust mean square stability and H-infinity performance of the closed-loop system under imperfect communication channels, a dynamic output feedback control approach based on H-2/H-infinity criteria is proposed in the framework of linear matrix inequalities. A numerical example is presented to illustrate the validity of the theoretical analysis, and applicability of the proposed control approach. (C) 2021 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.