Paper Info
Title
Wireless Networked Control Systems With Coding-Free Data Transmission for Industrial IoT
Abstract
Wireless networked control systems for the Industrial Internet of Things (IIoT) require low-latency communication techniques that are very reliable and resilient. In this article, we investigate a coding-free control method to achieve ultralow latency communications in single-controller-multiplant networked control systems for both slow- and fast-fading channels. We formulate a power allocation problem to optimize the sum cost functions of multiple plants, subject to the plant stabilization condition and the controller’s power limit. Although the optimization problem is a nonconvex one, we derive a closed-form solution, which indicates that the optimal power allocation policy for stabilizing the plants with different channel conditions is reminiscent of the channel-inversion policy. We numerically compare the performance of the proposed coding-free control method and the conventional coding-based control methods in terms of the control performance (i.e., the cost function) of a plant, which shows that the coding-free method is superior in a practical range of signal-to-noise ratios.
Year
DOI
Venue
2020
10.1109/JIOT.2019.2957433
IEEE Internet of Things Journal
Keywords
DocType
Volume
Wireless sensor networks,Wireless communication,Actuators,Robot sensing systems,Process control,DH-HEMTs,Internet of Things
Journal
7
Issue
ISSN
Citations 
3
2327-4662
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Wanchun Liu1884.65
Popovski Petar24262316.91
Yonghui Li33393253.70
Branka Vucetic43266352.78