数据采集与处理2025，Vol.40Issue(3)：774-783,10.DOI:10.16337/j.1004-9037.2025.03.016
基于非完美信道信息的无线控制系统随机接入方法
Random Access Scheme Based on Imperfect Channel Information in Wireless Con-trol Systems
摘要
Abstract
This paper addresses a wireless control system where multiple control loops share spectrum resources and proposes a random access scheme based on imperfect channel state information to achieve control stability.Firstly,in the scenario where multiple control loops access the remote controller with a fixed probability,control stability conditions are derived through the Lyapunov function.Secondly,an optimization problem is formulated with access probability and transmission power as variables,aiming to minimize the total energy consumption of the system while satisfying control stability and transmission power constraints.Since this optimization problem is non-convex and only imperfect channel state information(CSI)can be obtained,a design approach for the access strategy is proposed by combining the Lyapunov stability theorem with mathematical methods such as Bernstein inequality and continuous convex approximation.Simulation results demonstrate that the proposed scheme,compared to existing typical access solutions,can significantly reduce system energy consumption while ensuring control performance.关键词
无线控制系统/李雅普诺夫函数/随机接入/非完美信道状态信息/控制稳定性Key words
wireless control system/Lyapunov function/random access/imperfect channel state information/control stability分类
信息技术与安全科学引用本文复制引用
姜正莽,王子宁,马彪,刘笑宇,林敏..基于非完美信道信息的无线控制系统随机接入方法[J].数据采集与处理,2025,40(3):774-783,10.基金项目
国家自然科学基金(62471255) （62471255）
南京邮电大学引进人才自然科学研究启动基金(NY224068). （NY224068）
