Optimal transmission schedule with privacy preservation for cyber-physical system against eavesdropping attack

Privacy issues in remote state estimation for CyberPhysical System (CPS) against eavesdropping attack pose significant challenges in ensuring both system performance and data security. Existing studies often overlook the challenges posed by the acknowledgment signal's potential risks and the as...

Full description

Saved in:
Bibliographic Details
Published in:IEEE signal processing letters 2024-12, p.1-5
Main Authors: Jin, Zengwang, Ma, Menglu, Wang, Zhen, Sun, Changyin
Format: Article
Language:English
Subjects:
Accuracy
cyber attack
Cyber-physical system (CPS)
Eavesdropping
Estimation error
Job shop scheduling
Noise
Optimal scheduling
privacy preservation
Schedules
State estimation
Steady-state
Wireless networks
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Privacy issues in remote state estimation for CyberPhysical System (CPS) against eavesdropping attack pose significant challenges in ensuring both system performance and data security. Existing studies often overlook the challenges posed by the acknowledgment signal's potential risks and the asymptotic convergence properties of stable systems. To address these challenges, this paper proposes a privacy-preserving optimal transmission scheduling method based on a pre-arranged indicator. The method determines whether to transmit real state estimates or artificial noise by solving an optimization problem that balances estimation performance and privacy preservation. The privacy is ensured by keeping the eavesdropper's estimation error covariance higher than the legitimate estimator's. A threshold structure is proved with theoretical derivations. Simulation results are given to support the theoretical analysis.
ISSN:1070-9908
DOI:10.1109/LSP.2024.3514793