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Distributed Sparse Undetectable Attacks Against State Estimation
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DOI：10.1109/TCNS.2021.3112774.png)
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This article studies a class of distributed attack strategies against state estimation of wireless sensor networks. The attack objective is to corrupt the least numbers of sensors so that the state estimate error approaches a target bias while avoiding being detected and high attacking is lost. First, with precise knowledge of the measurement model and applying a sparsity projection operation with average linear complexity rather than the popular brute force search and approximation techniques, a distributed optimization scheme is proposed which provides an exact and low-complexity algorithmic solution to finding the optimal attack strategy. Furthermore, by introducing dead-zone type projection and region projection operators, a distributed optimization algorithm for robust sparse undetectable attacks is proposed with imprecise model knowledge. A distinguishing point of the proposed algorithms is that a tradeoff between computational complexity and an attack's impact can be achieved by properly designing a cost function. Simulation results on an unmanned ground vehicle are presented to substantiate the algorithm.
Keyword:
Distributed optimization (DO)
state estimation
undetectable attacks
wireless sensor networks
期刊
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5
论文数:
1.7K
被引数:
5.8K
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