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Mathematical Problems in Engineering
Volume 2016, Article ID 1048697, 8 pages
http://dx.doi.org/10.1155/2016/1048697
Research Article

Decentralized Event-Based Communication Strategy on Leader-Follower Consensus Control

1School of Science, Nanjing University of Science and Technology, Nanjing 210094, China
2Research Institute of Information Security, Hunan University of Finance and Economics, Changsha 410205, China

Received 14 February 2016; Revised 12 June 2016; Accepted 28 June 2016

Academic Editor: Mirko Viroli

Copyright © 2016 Duosi Xie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper addresses the leader-follower consensus problem of networked systems by using a decentralized event-based control strategy. The event-based control strategy makes the controllers of agents update at aperiodic event instants. Two decentralized event functions are designed to generate these event instants. In particular, the second event function only uses its own information and the neighbors’ states at their latest event instants. By using this event function, no continuous communication among followers is required. As the followers only communicate at these discrete event instants, this strategy is able to save communication and to reduce channel occupation. It is analytically shown that the leader-follower networked system is able to reach consensus by utilizing the proposed control strategy. Simulation examples are shown to illustrate effectiveness of the proposed control strategy.