{"title":"Secure Reduced-Dimensional Coding Scheme for Distributed Estimation With Communication Constraints","authors":"Longyu Li;Wen Yang;Yanfang Mo;Wenjie Ding;Jie Wang;Yang Tang","doi":"10.1109/TSIPN.2025.3603723","DOIUrl":null,"url":null,"abstract":"This paper addresses the problem of secure state estimation in distributed sensor networks with communication constraints. We propose a reduced-dimensional coding scheme based on the PredVAR model, which extracts dynamics from high-dimensional measurements while enhancing communication efficiency and privacy. A distributed estimator is developed under the proposed coding framework, and the impact of dimensionality reduction on estimation performance is analyzed. To defend against adversarial inference, we explicitly model a subspace-based eavesdropper and introduce a lightweight, time-varying perturbation strategy using orthogonal transformations. Simulation results demonstrate the effectiveness of our framework in balancing estimation accuracy, communication efficiency, and resilience against eavesdropping attacks.","PeriodicalId":56268,"journal":{"name":"IEEE Transactions on Signal and Information Processing over Networks","volume":"11 ","pages":"1058-1071"},"PeriodicalIF":3.0000,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Signal and Information Processing over Networks","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11143915/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This paper addresses the problem of secure state estimation in distributed sensor networks with communication constraints. We propose a reduced-dimensional coding scheme based on the PredVAR model, which extracts dynamics from high-dimensional measurements while enhancing communication efficiency and privacy. A distributed estimator is developed under the proposed coding framework, and the impact of dimensionality reduction on estimation performance is analyzed. To defend against adversarial inference, we explicitly model a subspace-based eavesdropper and introduce a lightweight, time-varying perturbation strategy using orthogonal transformations. Simulation results demonstrate the effectiveness of our framework in balancing estimation accuracy, communication efficiency, and resilience against eavesdropping attacks.
期刊介绍:
The IEEE Transactions on Signal and Information Processing over Networks publishes high-quality papers that extend the classical notions of processing of signals defined over vector spaces (e.g. time and space) to processing of signals and information (data) defined over networks, potentially dynamically varying. In signal processing over networks, the topology of the network may define structural relationships in the data, or may constrain processing of the data. Topics include distributed algorithms for filtering, detection, estimation, adaptation and learning, model selection, data fusion, and diffusion or evolution of information over such networks, and applications of distributed signal processing.