TY - GEN
T1 - PLL based time synchronization in wireless sensor networks
AU - Zhou, Gang
AU - Shetty, Sachin
AU - Simms, George
AU - Song, Min
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=72349093117&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72349093117&partnerID=8YFLogxK
U2 - 10.1109/RTCSA.2009.12
DO - 10.1109/RTCSA.2009.12
M3 - Conference contribution
AN - SCOPUS:72349093117
SN - 9780769537870
T3 - Proceedings - 15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009
SP - 51
EP - 56
BT - Proceedings - 15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009
T2 - 15th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2009
Y2 - 24 August 2009 through 26 August 2009
ER -