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  • Research Article
  • Open Access

Localization in Wireless Sensor Networks with Known Coordinate Database

EURASIP Journal on Wireless Communications and Networking20102010:901283

  • Received: 24 December 2009
  • Accepted: 3 June 2010
  • Published:


Geographic location of nodes is very useful for a sensor network. A novel and practical Radio Frequency (RF)-based localization algorithm called Kcdlocation has been presented for some specific sensor network topologies, such as the grid and linear types. The Kcdlocation algorithm is adapted to those wireless sensor networks deployed with known coordinate database. It examines the ordered sequence of neighboring unknown nodes relative to some anchor nodes so that they are ranked to compute the location of unknown nodes by wireless localization measurements. After the task of distinguishing neighboring unknown nodes is completed through the ranging technology, the correct position for each sensor node would be identified. The localization scalability and fault tolerant performance of this algorithm have been evaluated from the perspective of practicability. Its performances for the real circumstance are verified through different experiments with several RF channels and deployment parameters. The node localization accuracy of Kcdlocation in a 5 * 4 grid network reaches 100% in a flat open square.


  • Sensor Network
  • Sensor Node
  • Radio Frequency
  • Wireless Sensor Network
  • Localization Accuracy

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Authors’ Affiliations

State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing, 100190, China
Graduate University of Chinese Academy of Sciences, Beijing, 100039, China
New Star Research Institute of Applied Technology, Hefei, 230031, China


© Zhen Fang et al. 2010

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.