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Proceedings Paper

Signal processing techniques for synchronization of wireless sensor networks
Author(s): Jaehan Lee; Yik-Chung Wu; Qasim Chaudhari; Khalid Qaraqe; Erchin Serpedin
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Paper Abstract

Clock synchronization is a critical component in wireless sensor networks, as it provides a common time frame to different nodes. It supports functions such as fusing voice and video data from different sensor nodes, time-based channel sharing, and sleep wake-up scheduling, etc. Early studies on clock synchronization for wireless sensor networks mainly focus on protocol design. However, clock synchronization problem is inherently related to parameter estimation, and recently, studies of clock synchronization from the signal processing viewpoint started to emerge. In this article, a survey of latest advances on clock synchronization is provided by adopting a signal processing viewpoint. We demonstrate that many existing and intuitive clock synchronization protocols can be interpreted by common statistical signal processing methods. Furthermore, the use of advanced signal processing techniques for deriving optimal clock synchronization algorithms under challenging scenarios will be illustrated.

Paper Details

Date Published: 3 December 2010
PDF: 10 pages
Proc. SPIE 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V, 782102 (3 December 2010); doi: 10.1117/12.881595
Show Author Affiliations
Jaehan Lee, Texas A&M Univ. (United States)
Yik-Chung Wu, Univ. of Hong Kong. (Hong Kong, China)
Qasim Chaudhari, Iqra Univ. (Pakistan)
Khalid Qaraqe, Texas A&M Univ. (United States)
Erchin Serpedin, Texas A&M Univ. (United States)

Published in SPIE Proceedings Vol. 7821:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V
Paul Schiopu; George Caruntu, Editor(s)

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