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Volume 1 Issue 2
Apr.  2014

IEEE/CAA Journal of Automatica Sinica

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Article Navigation >  IEEE/CAA Journal of Automatica Sinica  > 2014  >  1(2): 193-203
Wenhui Liu, Feiqi Deng, Jiarong Liang and Haijun Liu, "Distributed Average Consensus in Multi-agent Networks with Limited Bandwidth and Time-delays," IEEE/CAA J. of Autom. Sinica, vol. 1, no. 2, pp. 193-203, 2014.
Citation: Wenhui Liu, Feiqi Deng, Jiarong Liang and Haijun Liu, "Distributed Average Consensus in Multi-agent Networks with Limited Bandwidth and Time-delays," IEEE/CAA J. of Autom. Sinica, vol. 1, no. 2, pp. 193-203, 2014.
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Distributed Average Consensus in Multi-agent Networks with Limited Bandwidth and Time-delays

  • 1. College of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China;

  • 2. School of Computer, Electronics and Information, Guangxi University, Nanning 530004, China;

  • 3. School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China

Funds:

This work was supported by National Natural Science Foundation of China (61273126, 61363002, 61374104), Natural Science Foundation of Guangdong Province (10251064101000008, S2012010009675), Research Foundation for the Doctoral Program of Higher Education of China (20130172110027), Fundamental Research Funds for the Central Universities (2012ZM0059), Foundation of Key Laboratory of Autonomous Systems and Networked Control (2013A01).

    Abstract
  • This paper studies the distributed average consensus problem of multi-agent digital networks with time-delays. For the network, each agent can only exchange symbolic data with its neighbours. We provide a distributed average consensus protocol which uses the quantized and time-delay information. We consider two types of dynamic encoders/decoders in our protocol. One uses inverse proportion function as scaling function, while the other uses exponential function as scaling function. All agents can reach average consensus asymptotically with our protocol. Furthermore, we show that the average consensus protocol is robust to finite symmetric time-delays, but is sensitive to asymmetric time-delays that will destroy the average consensus of the networks. Finally, simulations are presented to illustrate validity of our theoretical results.

     

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