PLL based time synchronization in wireless sensor networks

Gang Zhou, Sachin Shetty, George Simms, Min Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

Time synchronization is a key component in numerous wireless sensor network applications. Most of the current software based time synchronization approaches suffer from communication overhead and lack of scalability. In this paper, we propose a hardware based approach based on voltage controlled crystal oscillator and phase locked loop techniques to achieve and maintain sub microsecond level time synchronization. Our approach does not require any exchange of synchronization messages with neighboring nodes. Performance evaluations in Matlab demonstrate sub microsecond accuracy and robustness to infrequent loss of WWVB signal. The principle advantages of our solution is scalability, accuracy, and low communication overhead.

Original languageEnglish
Title of host publicationProceedings - 15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009
Pages51-56
Number of pages6
DOIs
StatePublished - 2009
Event15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009 - Beijing, China
Duration: 24 Aug 200926 Aug 2009

Publication series

NameProceedings - 15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009

Conference

Conference15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009
Country/TerritoryChina
CityBeijing
Period24/08/0926/08/09

Fingerprint

Dive into the research topics of 'PLL based time synchronization in wireless sensor networks'. Together they form a unique fingerprint.

Cite this