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| Second-order Consensus Time Synchronization for Wireless Sensor Networks |
| HUANG Yourui① CHEN Zhenping② LI Dequan③ TANG Chaoli① QU Liguo④ |
①(School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China)
②(School of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, China)
③(School of Science, Anhui University of Science and Technology, Huainan 232001, China)
④(College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000, China) |
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Abstract Since in wireless sensor networks, the joint of new nodes or the death of old nodes lead to a dynamic topology, this paper studies one completely distributed Second-Order Consensus Time Synchronization (SOCTS) algorithm. The clock feature of each node is modeled into a second order state equation, and the local virtual time is broadcasted according to the pseudo synchronous cycle, Moreover, the synchronization control input is constructed according to the disagreement on local virtual time among neighboring nodes. By virtue of the matrix transformation, the network time synchronization issue is turned into the stability issue of some transformed system, and the convergence and convergence condition for the SOCTS algorithm are analyzed theoretically. Moreover, the factors that influence the convergence rate of the SOCTS algorithm are investigated. Finally, the effectiveness of the proposed method is verified by numerical simulations.
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Received: 19 April 2016
Published: 14 November 2016
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| Fund: The National Natural Science Foundation of China (51274011, 51404008, 61472003), The Science and Technology Research Plan of Anhui Province (1501021027) |
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Corresponding Authors:
HUANG Yourui
E-mail: hyr628@163.com
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