文献类型：期刊文献

英文题名：Privacy preservation by strategic transmission in the user-server LQG control systems

作者：Lin, Wenhao[1];Yu, Xiaoping[1];Yang, Wen[1];Yang, Chao[1]

机构：[1]East China Univ Sci & Technol, Dept Automat, Key Lab Smart Mfg Energy Chem Proc, Minist Educ, Shanghai 200237, Peoples R China

年份：2026

卷号：175

起止页码：343

外文期刊名：ISA TRANSACTIONS

收录：;EI(收录号：20262220824591);WOS:【SCI-EXPANDED(收录号:WOS:001820771500001)】；

基金：This work is supported in part by the National Key R&D Program of China (2023YFF1204805) , National Natural Science Foundation of China under Grant (62336005) .

语种：英文

外文关键词：Privacy preservation; Networked control systems; Strategic transmission; LQG control

摘要：In this paper, a linear quadratic Gaussian (LQG) control system consisting of a single user and a single server is studied as a basic framework. In this system, the user transmits its data to the server for the optimal LQG control inputs, and they communicate with each other through a shared network. However, the network is public and directly transmitting private data may lead to unauthorized access by external adversaries, which raises the privacy concerns for the user. Therefore, we design a privacy scheme by the method of strategic transmission where the user transmits the distorted value at certain times based on a binary variable. We study the design of the scheme in two scenarios, and analyze the privacy and LQG control performances. We also propose the associated optimization problems and provide the optimal solutions. Finally, examples are given to illustrate the performance of the optimal privacy scheme.