Range assignment and λ-proximity in wireless sensor networks with a realistic physical layer

Authors:
Fadila Khadar;David Simplot-Ryl
Affiliations:
Centre de recherche INRIA Lille-Nord Europe, Villeneuve d'Ascq, France;Centre de recherche INRIA Lille-Nord Europe, Villeneuve d'Ascq, France
Venue:
Proceedings of the 6th ACM symposium on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
Year:
2009

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Abstract

A range assignement in a wireless sensor network is a function that assigns to each node a communication range in order to minimize its energy consumption while preserving the quality of the network. We study the range assignment problem in a network modelized with a realistic physical layer. In this case, the classical notion of connectivity is not sufficient to appreciate the validity of a range assignement. We propose different cost functions and centralized range assignment algorithms to be used with a realistic physical layer. We then evaluate the performance of these different schemes.