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Towards master-less wsn clock synchronization with a light communication protocol

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2 Author(s)
Fontanelli, D. ; DISI-Dipt. di Ing. e Scienza dell''Inf., Univ. of Trento, Trento, Italy ; Macii, D.

Time synchronization of Wireless Sensor Network (WSN) nodes is essential in those applications requiring distributed task scheduling or data aggregation and fusion. In this paper, a new synchronization procedure based on a distributed Proportional Integral (PI) consensus controller is described. Compared to other similar solutions, the proposed approach keeps into account the effect of random communication and processing delays and it is expected to have lower communication overhead. Also, it is designed to avoid the election of any fixed time reference node, thus potentially improving the robustness of the whole synchronization procedure. Some simulation results show that the procedure works correctly even in different network traffic conditions.

Published in:

Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE

Date of Conference:

3-6 May 2010