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Synchronous Hybrid Event- and Time-Driven Consensus in Multiagent Networks With Time Delays
IEEE Transactions on Cybernetics
|August 11, 2015
Summary
This study analyzes delay robustness in synchronous hybrid consensus protocols for networks. It determines maximum allowable delays for average consensus, ensuring system performance with reduced data rates.
Area of Science:
- Control Systems Engineering
- Networked Systems
- Distributed Computing
Background:
- Consensus protocols are crucial for distributed systems.
- Event- and time-driven approaches offer efficiency.
- Time delays can degrade system performance.
Purpose of the Study:
- To investigate the delay robustness of synchronous hybrid event- and time-driven consensus protocols.
- To determine conditions for achieving average consensus despite time delays.
- To analyze the impact of different delay types on system stability.
Main Methods:
- Utilizing sampled-data control techniques.
- Analyzing the algebraic structure of interaction topologies.
- Characterizing maximum allowable time delays and event-detecting periods.
Main Results:
- Established bounds for time delays in synchronous hybrid consensus protocols.
- Demonstrated that performance can be maintained at reduced data-sampling rates.
- Provided theoretical results for common, multiple time-invariant, and multiple time-varying delays.
Conclusions:
- The proposed protocols exhibit robustness to various time delays.
- Network topology significantly influences achievable delay bounds.
- Theoretical findings are validated through simulations, confirming protocol effectiveness.
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