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arXiv 2103.11862eess.SYcs.SY
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量化和拒绝服务下的弹性控制:无差拍控制器和传输协议的联合设计

Resilient Control under Quantization and Denial-of-Service: Co-designing a Deadbeat Controller and Transmission Protocol

Wenjie Liu, Jian Sun, Gang Wang, Francesco Bullo, Jie Chen

摘要:

研究了连续时间线性定常系统在量化和拒绝服务攻击下的镇定问题。在这种情况下,两个DOS引起的挑战出现与弹性编码方案的设计,即,不同信号的编码策略之间的耦合,和编码器和解码器之间的同步。为了解决这些挑战,一种新的结构,配备了一个无差拍控制器,以及一个微妙的传输协议的输入和输出通道,共同设计利用可控性指标,提出了。当输入和输出通道都受到DoS攻击和量化,所提出的结构能够解耦的输入,输出和估计输出信号的编码方案。通过设计编码方案以及确保闭环系统的指数稳定性的条件,进一步证实了此属性。另一方面,当只有输出通道受到网络现象,所提出的结构可以实现指数稳定没有确认(ACK)信号,在现有的ACK为基础的结果。最后,通过一个数值例子说明了所提出的方法以及理论的实用价值。

英文摘要:

This paper is concerned with the problem of stabilizing continuous-time linear time-invariant systems subject to quantization and Denial-of-Service (DoS) attacks. In this context, two DoS-induced challenges emerge with the design of resilient encoding schemes, namely, the coupling between encoding strategies of different signals, and the synchronization between the encoder and decoder. To address these challenges, a novel structure that is equipped with a deadbeat controller as well as a delicate transmission protocol for the input and output channels, co-designed leveraging the controllability index, is put forward. When both input and output channels are subject to DoS attacks and quantization, the proposed structure is shown able to decouple the encoding schemes for input, output, and estimated output signals. This property is further corroborated by designing encoding schemes as well as conditions that ensure exponential stability of the closed-loop system. On the other hand, when only the output channel is subject to network phenomenon, the proposed structure can achieve exponential stabilization without acknowledgment (ACK) signals, in contrast to existing ACK-based results. Finally, a numerical example is given to demonstrate the practical merits of the proposed approach as well as the theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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