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Adaptive multi-hop timings synchronization for wireless sensor networks

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2 Author(s)
Kyoung-lae Noh ; Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX ; Serpedin, E.

Time synchronization for wireless sensor networks has been studied in recent years as a fundamental and critical design problem. This paper proposes an adaptive multi-hop timing synchronization (AMTS) which aims at minimizing overall network-wide energy consumption in timing synchronization. According to the current network status, AMTS determines the synchronization mode either the always on or sensor initiated mode, then adjusts the re-synchronization period to minimize energy consumption. Besides, it adapts a joint clock offset and skew estimation mechanism to achieve long term reliability of synchronization. AMTS has significant benefits in terms of energy-efficiency, and can be applied to various types of wireless sensor networks having different regulations.

Published in:

Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on

Date of Conference:

12-15 Feb. 2007