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Passivity-Based Pinning Synchronization Control of Switched Directed Networks With Improved Switching Strategy.

Chongyi Cui, Hong Sang, Yi Liu

IEEE Transactions on Cybernetics

|June 8, 2026

Summary

This summary is machine-generated.

This study introduces a new method for synchronizing switched directed networks (SDNs) using sampled data and a state-dependent switching strategy (SDSS). The approach ensures reliable synchronization for large networks and enhances encryption confidentiality.

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Area of Science:

Control Systems Engineering
Network Synchronization
Cybersecurity

Background:

Switched directed networks (SDNs) present challenges in achieving reliable synchronization.
Event-triggered communication strategies are crucial for efficient data exchange in networks.

Purpose of the Study:

To address the passivity-based pinning synchronization problem in SDNs under a sampled-data-based event-triggered (SDET) communication environment.
To develop a novel switching strategy and analysis framework for enhanced synchronization and security.

Main Methods:

An improved state-dependent switching strategy (SDSS) utilizing sampled measurements.
A novel time-dependent Lyapunov-Krasovskii functional (LKF) approach.
A relaxed passivity analysis framework for the synchronization error system (SES).

Main Results:

The proposed method ensures asymptotic synchronization of SDNs in the absence of external inputs.
The synchronization criterion is independent of the number of network nodes, suitable for large-scale SDNs.
The switching protocol effectively utilizes historical state data, leading to a less conservative framework.

Conclusions:

The developed scheme guarantees passivity and asymptotic synchronization for SDNs in an SDET environment.
The approach offers advantages in terms of reduced conservatism and scalability.
Applications in image encryption and decryption demonstrate the scheme's effectiveness and highlight the benefits of switching behaviors for confidentiality.