Journal
IEEE TRANSACTIONS ON CYBERNETICS
Volume 47, Issue 5, Pages 1273-1284Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCYB.2016.2544062
Keywords
Attack frequency; cyber system; distributed secure control; mean-square exponential convergence; network system; strategic attack
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Funding
- Singapore Economic Development Board under EIRP Grant [S14-1172-NRF EIRP-IHL]
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This paper studies a distributed secure consensus tracking control problem for multiagent systems subject to strategic cyber attacks modeled by a random Markov process. A hybrid stochastic secure control framework is established for designing a distributed secure control law such that meansquare exponential consensus tracking is achieved. A connectivity restoration mechanism is considered and the properties on attack frequency and attack length rate are investigated, respectively. Based on the solutions of an algebraic Riccati equation and an algebraic Riccati inequality, a procedure to select the control gains is provided and stability analysis is studied by using Lyapunov's method.. The effect of strategic attacks on discrete-time systems is also investigated. Finally, numerical examples are provided to illustrate the effectiveness of theoretical analysis.
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