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Vol. 189, Issue 6, June 2015, pp. 31-40




A Token-based MAC Protocol for Linear Sensor Networks

1, 2 El Hadji Malick NDOYE, 1 Frédérique JACQUET, 1 Michel MISSON, 2 Ibrahima NIANG

1 Clermont Université / LIMOS CNRS - Complexe scientifique des Cézeaux, 63172 Aubière cedex, France
2 Laboratoire d’Informatique, Universit
é Cheikh Anta Diop de Dakar (UCAD), B. P. 5005 Dakar-Fann, Sénégal

E-mail: ndoye@sancy.univ-bpclermont.fr, jacquet@sancy.univ-bpclermont.fr, misson@sancy.univ-bpclermont.fr, iniang@ucad.sn


Received: 4 June 2015 /Accepted: 26 June 2015 /Published: 30 June 2015

Digital Sensors and Sensor Sysstems


Abstract: A wireless sensor network is a large number of sensor nodes deployed in a fixed or random manner over a wide area for environmental monitoring applications. Wireless sensors communicate via wireless links and are powered by batteries. They collect and provide information to the base station usually called sink. The information collected is generally physical, chemical or biological nature. For some of these applications, as pipeline or road monitoring, wireless sensor nodes have to be deployed in a linear manner. We refer to these WSNs as Linear Sensor Networks (LSNs). Due to specificity of LSNs, MAC protocol designed for WSNs, as contention or TDMA based protocols, are often not suitable. Furthermore, wireless node deployment can provide a certain form of redundancy to prevent link or node failures. In this paper, we propose a token based MAC protocol for linear sensor networks in order to improve the network performance. We evaluate the effect of the redundancy on the throughput and on the end-to-end delay.


Keywords: Wireless sensor network, Linear topology, Throughput, MAC protocol, Token passing, End-to-end delay.


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