Abstract:
We consider energy-efficient time synchronization in a wireless sensor network where a head node is equipped with a powerful processor and supplied power from outlet, and...Show MoreMetadata
Abstract:
We consider energy-efficient time synchronization in a wireless sensor network where a head node is equipped with a powerful processor and supplied power from outlet, and sensor nodes are limited in processing and battery-powered. It is this asymmetry that our study focuses on; unlike most existing schemes to save the power of all network nodes, we concentrate on battery-powered sensor nodes in minimizing energy consumption for time synchronization. We present a time synchronization scheme based on asynchronous source clock frequency recovery and reverse two-way message exchanges combined with measurement data report messages, where we minimize the number of message transmissions from sensor nodes while achieving sub-microsecond time synchronization accuracy through propagation delay compensation. We carry out the performance analysis of the estimation of both measurement time and clock frequency with lower bounds for the latter. Simulation results verify that the proposed scheme outperforms the schemes based on conventional two-way message exchanges with and without clock frequency recovery in terms of the accuracy of measurement time estimation and the number of message transmissions and receptions at sensor nodes as an indirect measure of energy efficiency.
Published in: IEEE Transactions on Communications ( Volume: 65, Issue: 1, January 2017)
Funding Agency:
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Kyeong Soo Kim (S’89–M’97) received the Ph.D. degree in electronics engineering from Seoul National University, Seoul, South Korea, in 1995. He has been an Associate Professor of Electrical and Electronic Engineering with Xi’an Jiaotong-Liverpool University, Suzhou, China, since 2014. From 1996 to 1997, he was a Post-Doctoral Researcher with Washington University in St. Louis, St. Louis, MO, USA, where he was involved in ...Show More
Kyeong Soo Kim (S’89–M’97) received the Ph.D. degree in electronics engineering from Seoul National University, Seoul, South Korea, in 1995. He has been an Associate Professor of Electrical and Electronic Engineering with Xi’an Jiaotong-Liverpool University, Suzhou, China, since 2014. From 1996 to 1997, he was a Post-Doctoral Researcher with Washington University in St. Louis, St. Louis, MO, USA, where he was involved in ...View more
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Sanghyuk Lee received the Ph.D. degree in electrical engineering from Seoul National University, Seoul, South Korea, in 1998. Since 2011, he has been an Associate Professor with the Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University (XJTLU), Suzhou, China. He has also been working as a Founding Director of the Centre for Smart Grid and Information Convergence, XJTLU, since 2014. He ha...Show More
Sanghyuk Lee received the Ph.D. degree in electrical engineering from Seoul National University, Seoul, South Korea, in 1998. Since 2011, he has been an Associate Professor with the Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University (XJTLU), Suzhou, China. He has also been working as a Founding Director of the Centre for Smart Grid and Information Convergence, XJTLU, since 2014. He ha...View more
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Eng Gee Lim (M’98–SM’12) received the B.Eng. (Hons.) and Ph.D. degrees in electrical and electronic engineering from the University of Northumbria, U.K., in 1998 and 2002, respectively. He was with Andrew Ltd., U.K., a leading communications systems company, from 2002 to 2007. Since 2007, he has been with the Department of Electrical and Electronics Engineering, Xi’an Jiaotong-Liverpool University, where he is currently a...Show More
Eng Gee Lim (M’98–SM’12) received the B.Eng. (Hons.) and Ph.D. degrees in electrical and electronic engineering from the University of Northumbria, U.K., in 1998 and 2002, respectively. He was with Andrew Ltd., U.K., a leading communications systems company, from 2002 to 2007. Since 2007, he has been with the Department of Electrical and Electronics Engineering, Xi’an Jiaotong-Liverpool University, where he is currently a...View more
Contents Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Kyeong Soo Kim (S’89–M’97) received the Ph.D. degree in electronics engineering from Seoul National University, Seoul, South Korea, in 1995. He has been an Associate Professor of Electrical and Electronic Engineering with Xi’an Jiaotong-Liverpool University, Suzhou, China, since 2014. From 1996 to 1997, he was a Post-Doctoral Researcher with Washington University in St. Louis, St. Louis, MO, USA, where he was involved in the development of multichannel asynchronous transfer mode (ATM) switching systems. From 1997 to 2000, he was with the Passive Optical Network (PON) Systems Research and Development Organization of Lucent Technologies, where he was involved in the development of ATM-PON systems, which won the 1999 Bell Labs President’s Silver Award. From 2001 to 2007, he was a Principal Engineer with STMicroelectronics, and STMicroelectronics a Researcher-in-Residence with the Stanford Networking Research Center. From 2007 to 2014, he was with Swansea University, Wales, U.K., as an Associate Professor. He is currently a member of IET.
Kyeong Soo Kim (S’89–M’97) received the Ph.D. degree in electronics engineering from Seoul National University, Seoul, South Korea, in 1995. He has been an Associate Professor of Electrical and Electronic Engineering with Xi’an Jiaotong-Liverpool University, Suzhou, China, since 2014. From 1996 to 1997, he was a Post-Doctoral Researcher with Washington University in St. Louis, St. Louis, MO, USA, where he was involved in the development of multichannel asynchronous transfer mode (ATM) switching systems. From 1997 to 2000, he was with the Passive Optical Network (PON) Systems Research and Development Organization of Lucent Technologies, where he was involved in the development of ATM-PON systems, which won the 1999 Bell Labs President’s Silver Award. From 2001 to 2007, he was a Principal Engineer with STMicroelectronics, and STMicroelectronics a Researcher-in-Residence with the Stanford Networking Research Center. From 2007 to 2014, he was with Swansea University, Wales, U.K., as an Associate Professor. He is currently a member of IET.View more
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Sanghyuk Lee received the Ph.D. degree in electrical engineering from Seoul National University, Seoul, South Korea, in 1998. Since 2011, he has been an Associate Professor with the Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University (XJTLU), Suzhou, China. He has also been working as a Founding Director of the Centre for Smart Grid and Information Convergence, XJTLU, since 2014. He has been serving as a Vice President of Korean Convergence Society (KCS) since 2012, and an Adjunct Professor with Chiang Mai University, Chiang Mai, Thailand, in 2016. His main research interests include data evaluation with similarity measure, human signal analysis, high-dimensional data analysis, controller design for linear/nonlinear system, and observer design for linear/nonlinear system. He organized several international conferences with KCS and was awarded multiple honors such as outstanding scholar/best paper award from KCS and Korean Fuzzy Society.
Sanghyuk Lee received the Ph.D. degree in electrical engineering from Seoul National University, Seoul, South Korea, in 1998. Since 2011, he has been an Associate Professor with the Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University (XJTLU), Suzhou, China. He has also been working as a Founding Director of the Centre for Smart Grid and Information Convergence, XJTLU, since 2014. He has been serving as a Vice President of Korean Convergence Society (KCS) since 2012, and an Adjunct Professor with Chiang Mai University, Chiang Mai, Thailand, in 2016. His main research interests include data evaluation with similarity measure, human signal analysis, high-dimensional data analysis, controller design for linear/nonlinear system, and observer design for linear/nonlinear system. He organized several international conferences with KCS and was awarded multiple honors such as outstanding scholar/best paper award from KCS and Korean Fuzzy Society.View more
Department of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
Eng Gee Lim (M’98–SM’12) received the B.Eng. (Hons.) and Ph.D. degrees in electrical and electronic engineering from the University of Northumbria, U.K., in 1998 and 2002, respectively. He was with Andrew Ltd., U.K., a leading communications systems company, from 2002 to 2007. Since 2007, he has been with the Department of Electrical and Electronics Engineering, Xi’an Jiaotong-Liverpool University, where he is currently a Professor and the Head of Communication and Signal Processing Research Group. He has authored over 100 refereed international journals and conference papers. His research interests are antennas, RF/microwave engineering, EM measurements/simulations, energy harvesting, power/energy transfer, robotics, smart-grid communication, and wireless communication networks for smart and green cities. He is also a Charter Engineer and a fellow of IET.
Eng Gee Lim (M’98–SM’12) received the B.Eng. (Hons.) and Ph.D. degrees in electrical and electronic engineering from the University of Northumbria, U.K., in 1998 and 2002, respectively. He was with Andrew Ltd., U.K., a leading communications systems company, from 2002 to 2007. Since 2007, he has been with the Department of Electrical and Electronics Engineering, Xi’an Jiaotong-Liverpool University, where he is currently a Professor and the Head of Communication and Signal Processing Research Group. He has authored over 100 refereed international journals and conference papers. His research interests are antennas, RF/microwave engineering, EM measurements/simulations, energy harvesting, power/energy transfer, robotics, smart-grid communication, and wireless communication networks for smart and green cities. He is also a Charter Engineer and a fellow of IET.View more
