StarDust: A flexible architecture for passive localization in wireless sensor networks

Radu Stoleru, Pascal Vicaire, Tian He, John A. Stankovic

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

49 Scopus citations

Abstract

The problem of localization in wireless sensor networks where nodes do not use ranging hardware, remains a challenging problem, when considering the required location accuracy, energy expenditure and the duration of the localization phase. In this paper we propose a framework, called StarDust, for wireless sensor network localization based on passive optical components. In the StarDust framework, sensor nodes are equipped with optical retro-reflectors. An aerial device projects light towards the deployed sensor network, and records an image of the reflected light. An image processing algorithmis developed for obtaining the locations of sensor nodes. For matching a node ID to a location we propose a constraint-based label relaxation algorithm. We propose and develop localization techniques based on four types of constraints: node color, neighbor information, deployment time for a node and deployment location for a node. We evaluate the performance of a localization system based on our framework by localizing a network of 26 sensor nodes deployed in a 120-60ft 2 area. The localization accuracy ranges from 2 ft to 5 ft while the localization time ranges from 10 milliseconds to 2 minutes.

Original languageEnglish (US)
Title of host publicationSenSys'06
Subtitle of host publicationProceedings of the Fourth International Conference on Embedded Networked Sensor Systems
Pages57-70
Number of pages14
DOIs
StatePublished - Dec 1 2006
EventSenSys'06: 4th International Conference on Embedded Networked Sensor Systems - Boulder, CO, United States
Duration: Oct 31 2006Nov 3 2006

Publication series

NameSenSys'06: Proceedings of the Fourth International Conference on Embedded Networked Sensor Systems

Other

OtherSenSys'06: 4th International Conference on Embedded Networked Sensor Systems
Country/TerritoryUnited States
CityBoulder, CO
Period10/31/0611/3/06

Keywords

  • Localization
  • Wireless sensor networks

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