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30-11-2020 | Issue 6/2021

The Journal of Supercomputing 6/2021

Application of discrete event-triggered \({H_\infty }\) control in wireless signal transmission of IOT

Journal:
The Journal of Supercomputing > Issue 6/2021
Authors:
Wenwei Fei, Hongyu Ni, Wenxu Yan
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Abstract

With the development of network communication technology, the Internet of things (IOT) has penetrated into all aspects of society. IOT is mainly composed of a large number of equipment terminals. These terminals have mandatory communication ability and can receive or send data at any time through wireless networks, which will generate a huge amount of data. In the traditional control strategy, the terminals perform tasks periodically, which will inevitably lead to a large number of redundant data, not only waste valuable bandwidth resources, but also reduce the control performance of the system considering the network transmission delay. Therefore, a control method based on discrete event-triggered mechanism in wireless signal transmission is proposed. Considering the possible external interference, the disturbance signal is added, and a closed-loop time-delay system model which describes the discrete event-triggered mechanism and the performance of the system simultaneously is established. Then, based on Lyapunov stability theory and linear matrix inequality technique, \({H_\infty }\) stability criterion and feedback controller design method are obtained. To deal with the nonlinear term, the cone compensation linearization algorithm is used. Finally, a numerical example is given to verify the validity of the conclusions.

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