Consensus Protocol for Discrete-Time Linear Multiagent Systems With Channel Fadings: A Dynamic Event-Based Approach

作者：Zhang, Hao; Fan, Yuan; Qiu, Jianbin^*

来源：IEEE Transactions on Control of Network Systems, 2023, 10(1): 345-354.

DOI：10.1109/TCNS.2022.3203365

• Fading channels
• Consensus protocol
• Multi-agent systems
• Wireless sensor networks
• Control systems
• Bandwidth
• Stochastic processes
• Channel fadings
• consensus protocol
• discrete-time multiagent systems
• dynamic event-triggered scheme

This article investigates the consensus problem of discrete-time linear multiagent systems with channel fadings over wireless sensor networks. The phenomena of channel fadings are described as the stochastic Rice fading model with random time-varying channel coefficients. By utilizing the local state information and constructing a dynamic auxiliary system, a novel control protocol with the dynamic discrete-time event-triggered scheme has been proposed. Sufficient conditions are obtained to guarantee the asymptotic consensus of the multiagent systems under the proposed protocol. Compared with the existing works related to discrete-time event-triggered consensus, the interevent time between any two successive events can be prolonged, and thus, the transmission data packages can be decreased immensely. Finally, the effectiveness of the proposed consensus protocol with a dynamic discrete-time event-triggered scheme is testified by numerical simulations.