Distributed Graph Layout for Sensor Networks

  • Craig Gotsman
  • Yehuda Koren
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3383)

Abstract

Sensor network applications frequently require that the sensors know their physical locations in some global coordinate system. This is usually achieved by equipping each sensor with a location measurement device, such as GPS. However, low-end systems or indoor systems, which cannot use GPS, must locate themselves based only on crude information available locally, such as inter-sensor distances. We show how a collection of sensors, capable only of measuring distances to close neighbors, can compute their locations in a purely distributed manner, i.e. where each sensor communicates only with its neighbors. This can be viewed as a distributed graph drawing algorithm. We experimentally show that our algorithm consistently produces good results under a variety of simulated real-world conditions, and is relatively robust to the presence of noise in the distance measurements.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Craig Gotsman
    • 1
  • Yehuda Koren
    • 2
  1. 1.Department of Computer ScienceHarvard UniversityCambridgeUSA
  2. 2.AT&T Labs – ResearchFlorham ParkUSA

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