A fast network configuration algorithm for TDMA wireless sensor networks

Authors:
Fernando Royo;Miguel Lopez-Guerrero;Teresa Olivares;Luis Orozco-Barbosa
Affiliations:
Albacete Research Institute of Informatics, University of Castilla-La Mancha, Albacete, Spain;Department of Electrical Engineering, Metropolitan Autonomous University-Iztapalapa, Mexico City, DF, Mexico;Albacete Research Institute of Informatics, University of Castilla-La Mancha, Albacete, Spain;Albacete Research Institute of Informatics, University of Castilla-La Mancha, Albacete, Spain
Venue:
EURASIP Journal on Wireless Communications and Networking - Special issue on design, implementation, and evaluation of wireless sensor network systems
Year:
2010

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Abstract

The deployment of large-scale wireless sensor networks (WSNs) presents various challenges whose solution requires the design and development of power-and-time efficient protocols. In this context many proposals and various standards have suggested the use of time division multiple access (TDMA) in order to guarantee tight-time scheduling and high overall network throughput under high load conditions. However, in TDMA networks the time and overhead required during the setup phase are major drawbacks that are often overlooked. In this paper we introduce a simple and robust algorithm specially tailored to be used during the setup phase of a TDMA-based WSN. The proposed algorithm makes use of 2C, a conflict resolution protocol with some advantageous properties. As a case study, we consider the setup phase of the synchronous protocol SA-MAC. Our results show that the proposed algorithm is able to configure highly populated networks in significantly shorter times than traditional CSMA/CA. Furthermore, an experimental prototype has been developed allowing us to show the feasibility of deploying the proposal using off-the-shelf components.