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2010
Springer

F-LQE: A Fuzzy Link Quality Estimator for Wireless Sensor Networks

10 years 6 months ago
F-LQE: A Fuzzy Link Quality Estimator for Wireless Sensor Networks
Abstract. Radio Link Quality Estimation (LQE) is a fundamental building block for Wireless Sensor Networks, namely for a reliable deployment, resource management and routing. Existing LQEs (e.g. PRR, ETX, Fourbit, and LQI ) are based on a single link property, thus leading to inaccurate estimation. In this paper, we propose F-LQE, that estimates link quality on the basis of four link quality properties: packet delivery, asymmetry, stability, and channel quality. Each of these properties is defined in linguistic terms, the natural language of Fuzzy Logic. The overall quality of the link is specified as a fuzzy rule whose evaluation returns the membership of the link in the fuzzy subset of good links. Values of the membership function are smoothed using EWMA filter to improve stability. An extensive experimental analysis shows that F-LQE outperforms existing estimators.
Nouha Baccour, Anis Koubaa, Habib Youssef, Maissa
Added 11 Mar 2010
Updated 11 Mar 2010
Type Conference
Year 2010
Where EWSN
Authors Nouha Baccour, Anis Koubaa, Habib Youssef, Maissa Ben Jamâa, Denis do Rosário, Mário Alves, Leandro Buss Becker
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