Packet-Based Control Design for Networked Control Systems

Abstract

In this chapter, we exploit the fact that in most communication networks, data is transmitted in a “packet” and within its effective load sending a single bit or several hundred bits of data consumes the same amount of network resources [15]. This makes it possible in NCSs to actively compensate for the communication constraints by sending a sequence of control predictions in one data packet and then selecting the appropriate one corresponding to the current network condition. This packet-based transmission characteristic motivates us to design the packet-based control approach to NCSs. Due to the active compensation process in the packet-based control approach, a better performance can be expected compared to an implementation where no characteristics of the network are specifically considered in the design.