A comparative simulation study of link quality estimators in wireless sensor networks

Conference paper (2009)

Authors

Nouha Baccour University of Sfax, Tunisia and CISTER, National School of Engineers of Sfax
Anis Koubaa Al-Imam Mohamed Bin Saud University, University of Sfax, Tunisia and CISTER
Maissa Ben Jamâa National School of Engineers of Sfax
Habib Youssef University of Sousse
Marco Zuñiga Zuñiga Zamalloa National University of Ireland Galway
Mario Alves National School of Engineers of Sfax
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Published Date

2009

Language

English

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Abstract

Link quality estimation (LQE) in wireless sensor networks (WSNs) is a fundamental building block for an efficient and cross-layer design of higher layer network protocols. Several link quality estimators have been reported in the literature; however, none has been thoroughly evaluated. There is thus a need for a comparative study of these estimators as well as the assessment of their impact on higher layer protocols. In this paper, we perform an extensive comparative simulation study of some well-known link quality estimators using TOSSIM. We first analyze the statistical properties of the link quality estimators independently of higher-layer protocols, then we investigate their impact on the Collection Tree Routing Protocol (CTP). This work is a fundamental step to understand the statistical behavior of LQE techniques, helping system designers choose the most appropriate for their network protocol architectures.

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