Authors:
El Hadji Malick Ndoye
1
;
Frédérique Jacquet
2
;
Michel Misson
2
and
Ibrahima Niang
3
Affiliations:
1
Clermont Universite and Universit´e Cheikh Anta Diop de Dakar (UCAD), France
;
2
Clermont Universite, France
;
3
Universit´e Cheikh Anta Diop de Dakar (UCAD), Senegal
Keyword(s):
Wireless Sensor Network, Linear Topology, Throughput, Mac Protocol, Token Passing.
Related
Ontology
Subjects/Areas/Topics:
Sensor Networks
;
Wireless Information Networks
;
Wireless Network Protocols
Abstract:
Wireless Sensor Networks (WSNs) consist of a large number of sensor nodes deployed in a wide area for
monitoring applications. 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 number of packets
delivered to the sink. We show that the redundancy induces a significant improvement both on the delivered
traffic and on the FIFO queue size of the nodes.