A high-accuracy, low-cost localization system for wireless sensor networks

Radu Stoleru, Tian He, John A. Stankovic, David Luebke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

111 Scopus citations

Abstract

The problem of localization of wireless sensor nodes has long been regarded as very difficult to solve, when considering the realities of real world environments. In this paper, we formally describe, design, implement and evaluate a novel localization system, called Spotlight. Our system uses the spatio-temporal properties of well controlled events in the network (e.g., light), to obtain the locations of sensor nodes. We demonstrate that a high accuracy in localization can be achieved without the aid of expensive hardware on the sensor nodes, as required by other localization systems. We evaluate the performance of our system in deployments of Mica2 and XSM motes. Through performance evaluations of a real system deployed outdoors, we obtain a 20cm localization error. A sensor network, with any number of nodes, deployed in a 2500m2 area, can be localized in under 10 minutes, using a device that costs less than $1000. To the best of our knowledge, this is the first report of a sub-meter localization error, obtained in an outdoor environment, without equipping the wireless sensor nodes with specialized ranging hardware. Categories and Subject Descriptors C.2.4 [Computer-Communications Networks]: Distributed Systems; C.3 [Special-Purpose and Application-Based Systems]: Real-Time and embedded systems. General Terms Algorithms, Measurement, Performance, Design, Experimentation.

Original languageEnglish (US)
Title of host publicationSenSys 2005 - Proceedings of the 3rd International Conference on Embedded Networked Sensor Systems
PublisherAssociation for Computing Machinery
Pages13-26
Number of pages14
ISBN (Print)159593054X, 9781595930545
DOIs
StatePublished - Jan 1 2005
Event3rd ACM International Conference on Embedded Networked Sensor Systems, SenSys 2005 - San Diego, CA, United States
Duration: Nov 2 2005Nov 4 2005

Publication series

NameSenSys 2005 - Proceedings of the 3rd International Conference on Embedded Networked Sensor Systems

Other

Other3rd ACM International Conference on Embedded Networked Sensor Systems, SenSys 2005
Country/TerritoryUnited States
CitySan Diego, CA
Period11/2/0511/4/05

Keywords

  • Event distribution
  • Laser
  • Localization
  • Wireless sensor network

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