Title
Maximizing Privacy in MIMO Cyber-Physical Systems Using the Chapman-Robbins Bound
Abstract
Privacy breaches of cyber-physical systems could expose vulnerabilities to an adversary. Here, privacy leaks of step inputs to linear-time-invariant systems are mitigated through additive Gaussian noise. Fundamental lower bounds on the privacy are derived, which are based on the variance of any estimator that seeks to recreate the input. Fully private inputs are investigated and related to transmission zeros. Thereafter, a method to increase the privacy of optimal step inputs is presented and a privacy-utility trade-off bound is derived. Finally, these results are verified on data from the KTH Live-In Lab Testbed, showing good correspondence with theoretical results.
Year
DOI
Venue
2020
10.1109/CDC42340.2020.9303912
CDC
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Rijad Alisic100.68
Marco Molinari200.34
Philip E. Pare3147.53
Henrik Sandberg41215112.50