Time Synchronization in Heterogeneous Sensor Networks

Authors:
Isaac Amundson;Branislav Kusy;Peter Volgyesi;Xenofon Koutsoukos;Akos Ledeczi
Affiliations:
Institute for Software Integrated Systems (ISIS) Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, USA TN 37235;Department of Computer Science, Stanford University, Stanford, USA CA 94305;Institute for Software Integrated Systems (ISIS) Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, USA TN 37235;Institute for Software Integrated Systems (ISIS) Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, USA TN 37235;Institute for Software Integrated Systems (ISIS) Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, USA TN 37235
Venue:
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
Year:
2008

Citing 10
Cited 1

Time synchronization in ad hoc networks

MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Timing-sync protocol for sensor networks

Proceedings of the 1st international conference on Embedded networked sensor systems
The flooding time synchronization protocol

SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Versatile low power media access for wireless sensor networks

SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Fine-grained network time synchronization using reference broadcasts

OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Countersniper system for urban warfare

ACM Transactions on Sensor Networks (TOSN)
Probabilistic detection of mobile targets in heterogeneous sensor networks

Proceedings of the 6th international conference on Information processing in sensor networks
The emergence of networking abstractions and techniques in TinyOS

NSDI'04 Proceedings of the 1st conference on Symposium on Networked Systems Design and Implementation - Volume 1
Elapsed time on arrival: a simple and versatile primitive for canonical time synchronisation services

International Journal of Ad Hoc and Ubiquitous Computing
On the scalability of routing integrated time synchronization

EWSN'06 Proceedings of the Third European conference on Wireless Sensor Networks

Distributed network control for mobile multi-modal wireless sensor networks

Journal of Parallel and Distributed Computing

Quantified Score

Hi-index	0.01

Visualization

Abstract

Time synchronization is a critical component in many wireless sensor network applications. Although several synchronization protocols have recently been developed, they tend to break down when implemented on networks of heterogeneous devices consisting of different hardware components and operating systems, and communicate over different network media. In this paper, we present a methodology for time synchronization in heterogeneous sensor networks (HSNs). This includes synchronization between mote and PC networks, a communication pathway that is often used in sensor networks, but has received little attention with respect to time synchronization. In addition, we evaluate clock skew compensation methods including linear regression, exponential averaging, and phase-locked loops. Our HSN synchronization methodology has been implemented as a network service and tested on an experimental testbed. We show that a 6-hop heterogeneous sensor network can be synchronized with an accuracy on the order of microseconds.