Distributed Approach to Dynamic Quantization for Multi-Agent Systems

Jadhav, Shashank; Datar, Adwait; Werner, Herbert

doi:10.23919/acc.2018.8431183

Cited by 2 publications

(1 citation statement)

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“…On the other hand, PDR aims to perturb released data such that the original data can not be inferred from the perturbed data, and simultaneously, the perturbed data can still enable certain utilities [27], which is similar to the codingdecoding technology [33]. The coding-decoding technology has been investigated in the existing literature (see [4], [12], [21], [22] for single-integrator MASs, [23], [25] for double-integrator MASs, [17], [20], [32] for general linear MASs and [7] for nonlinear MASs) with the aim of designing a pair of encoder-decoder appropriately such that at each time instant, the decoding error is possibly small with the minimum size of the released data. Based on the above analysis, in this paper, we propose a novel encryption-decryption scheme combining CED and PDR technologies, where 1) the CED technology is employed to ensure the high security of the system; and 2) the PDR technology, realized by the coding-decoding technology, is employed to reduce the size of the released data, thereby reducing the heavy calculations that will be imposed on the CED algorithm.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Consensus Control for Multiagent Systems: An Encryption-Decryption Scheme

Gao

Wang

et al. 2022

IEEE Trans. Automat. Contr.

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In this paper, the fault-tolerant consensus control problem is investigated for multi-agent systems with sensor faults. A first-order difference equation is utilized to describe the sensor fault, and an observer is designed to estimate the state and the fault simultaneously. For security enhancement and/or congestion mitigation purposes, the estimated state is first encrypted into a series of finite-level codewords by an encryption algorithm and then transmitted to other agents through a directed topology. After being received, the codewords are then decrypted by the corresponding decryption algorithm and subsequently utilized to design the consensus controller. By constructing a novel matrix norm along with its compatible vector norm, we obtain a necessary and sufficient condition, which serves as an index in the observer and the controller design. In the end, two simulation examples are given to demonstrate the validity of the results in this paper.

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