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An Efficient Directed Localization Recursion Protocol for Wireless Sensor Networks. Horacio Antonio Braga Fernandes de Oliveira 1 , Azzedine Boukerche 2 , Eduardo Freire Nakamura 3 , and Antonio Alfredo Ferreira Loureiro 4

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an efficient directed localization recursion protocol for wireless sensor networks

An Efficient Directed Localization Recursion Protocol for Wireless Sensor Networks

Horacio Antonio Braga Fernandes de Oliveira1, Azzedine Boukerche2, Eduardo Freire Nakamura3, and Antonio Alfredo Ferreira Loureiro4

1 Computer science in the Department of Computer Science, Federal University of

Amazonas(UFAM), Manaus, Brazil.

2 PARADISE Research Laboratory, School of Information Technology and Engineering (SITE), Ottawa.

3 The Center of Analysis, Research and Technological Innovation Foundation (FUCAPI), Manaus, Brazil.

4 Computer science in the Department of Computer Science, Federal University of Minas Gerais(UFMG), Belo Horizonte, Brazil

IEEE Transactions on Computers, Vol. 58, No. 5, May 2009

outline
Outline
  • Introduction
  • The Directed Position Estimation(DPE) Algorithm
  • Performance Evaluation
  • Conclusions
introduction
Introduction
  • The techniques used to identify the position of each sensor node are central to such location-aware operations.
introduction3
Introduction
  • In this work, the authors propose a different recursive localization system
    • a node can estimate its position using only two reference neighbors
    • work in a low-density sensor network
    • fewer errors and resources than the triangulation, trilateration, or multilateration methods.
challenge
Challenge

reference node

residual error
Residual Error
  • Quantifying the Position Error
    • The residual error can be used as a measure of confidence in the estimated position. The residual error for an estimated position is defined as
performance evaluation
Performance Evaluation
  • Communication range for all nodes:15 m
  • Number of beacon nodes: 4
  • Sensor field:70 m × 70 m
  • Scenario 1
    • The beacon structure is deployed at the center of the sensor field
  • Scenario 2
    • The beacon structure is deployed at the border
conclusions
Conclusions
  • In this paper, the authors propose a DPE algorithm
    • a node can estimate its position using only two reference neighbors
    • work in a low-density sensor network
    • fewer errors and resources than the triangulation, trilateration, or multilateration methods.