Optimal performance of networked control systems with bandwidth and coding constraints

- The optimal performance of MIMO NCSs with bandwidth and coding constraints is studied in this paper.
- The channel input power of NCSs is also considered in the performance index.
- The optimal tracking performance is constrained by plant internal structure and bandwidth, coding and additive white Gaussian noise.
- The optimal performance of MIMO NCS is attained by stabilizing compensators and applying spectral factorization technique.

The optimal tracking performance of multiple-input multiple-output (MIMO) discrete-time networked control systems with bandwidth and coding constraints is studied in this paper. The optimal tracking performance of networked control system is obtained by using spectral factorization technique and partial fraction. The obtained results demonstrate that the optimal performance is influenced by the directions and locations of the nonminimum phase zeros and unstable poles of the given plant. In addition to that, the characters of the reference signal, encoding, the bandwidth and additive white Gaussian noise (AWGN) of the communication channel are also closely influenced by the optimal tracking performance. Some typical examples are given to illustrate the theoretical results.