Quantized H∞ controller design for networked control systems

This paper studies problems of stability and stabilization for discrete-time networked control systems (NCSs) with an H_infin performance bound via quantized state feedback. The effects of both the signal quantization and the network conditions are taken into consideration. In order to estimate the lower bound of quantization ranges directly, a new model of NCSs via quantized state feedback is presented, based on which a new quantized H_infin controller design method is proposed. A numerical example is given to illustrate the merit and effectiveness of the proposed methods.