Packet dropout compensation for networked control systems : a multiple communication channels method

This paper is concerned with the problem of H∞ controller design for networked control systems (NCSs) with time delay and packet dropout. The idle communication channels are made full use to compensate the negative influences of time delay and packet dropout. By defining new Lyapunov function, linear matrix inequality (LMI)-based H∞ controller design is presented, and the merit of the proposed design methods lies in their less conservativeness, which is achieved by avoiding the utilization of bounding inequalities for cross products of vectors. The simulation results illustrate the effectiveness of the proposed multiple communication channels-based time delay and packet dropout compensation.