Communication-saving design by stochastic event triggers. Issue 17 (November 2019)

• Record Type: Journal Article
• Authors: Yang, Chao; Yang, Wen; Shi, Hongbo
• Is Part Of: Journal of the Franklin Institute. Volume 356:Issue 17(2019)
• Page Start: 10532
• Page End: 10546
• Publication Date: 2019-11
• Subjects: Science -- Periodicals; Technology -- Periodicals; Patents -- United States -- Periodicals; 505
• DOI: 10.1016/j.jfranklin.2018.07.028
• Languages: English
• ISSNs: 0016-0032

Abstract

Abstract: This paper proposes a design framework of sensor communication by using the stochastic event triggers, which aims at best saving the communication resources. The system to be considered is as follows: a sensor takes measurements of the states of a dynamic process and sends the information to a remote estimator, and the estimator computes the state estimates for the dynamic process. To save communication resources, a set of stochastic event triggers on the measurements are assigned to the sensor. At each sampled time, when no trigger is triggered, the sensor sends nothing to the estimator; when one of them is triggered, the sensor sends the identity code of the corresponding trigger. It is shown that once the estimator receives the identity of the trigger, it is equivalent for the estimator to receiving a measurement from a certain virtual sensor. Based on it, the system performance under the proposed communication is analyzed, and the design of specific models is considered. Examples are presented to demonstrate the proposed communication design.