Differentially Private Consensus Control for Discrete-Time Multiagent Systems: Encoding-Decoding Schemes

This article is concerned with the differentially private consensus control (DPCC) problem for linear discrete-time multiagent systems (MASs) under dynamic encoding-decoding schemes (EDSs), where the agents' initial states are the sensitive data to be protected from potential eavesdroppers. The...

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Bibliographic Details
Published in:IEEE transactions on automatic control Vol. 69; no. 8; pp. 5554 - 5561
Main Authors: Gao, Chen, Wang, Zidong, He, Xiao, Liu, Yang, Yue, Dong
Format: Journal Article
Language:English
Published: New York IEEE 01.08.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Co-design
Coding
Consensus control
Control systems
Decoding
Differential privacy
Discrete time systems
Electronic mail
encoding –decoding scheme (EDS)
Laplace equations
mean-square consensus
multiagent system (MAS)
Multiagent systems
Performance evaluation
Privacy
Vectors
ISSN:0018-9286, 1558-2523
Online Access:Get full text
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Summary:This article is concerned with the differentially private consensus control (DPCC) problem for linear discrete-time multiagent systems (MASs) under dynamic encoding-decoding schemes (EDSs), where the agents' initial states are the sensitive data to be protected from potential eavesdroppers. The EDS is deployed on each agent to compress the data before transmission so as to better utilize the limited network bandwidth. Differential privacy, as a performance metric, is introduced to evaluate the level of privacy, and an EDS-based DPCC scheme is proposed to ensure the ultimate mean-square consensus with preserved differential privacy. A set of criteria is first established for the EDS-embedded DPCC problem in terms of the performance of consensus, the size of transmitted data, and the level of privacy. Subsequently, the codesign issue is discussed for the EDS, the differentially private mechanism, and the consensus controller. Finally, the effectiveness of the developed algorithm is illustrated via numerical simulations.
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ISSN:0018-9286
1558-2523
DOI:10.1109/TAC.2024.3367803