Authors:
Honoré Bizagwira
1
;
Joël Toussaint
2
and
Michel Misson
2
Affiliations:
1
Université Blaise Pascal and CNRS, France
;
2
Université d’Auvergne and CNRS, France
Keyword(s):
Wireless Sensor Networks, Adaptive Reception Window, Schedule-based Protocol, Dynamic Topology, Harsh Environment.
Related
Ontology
Subjects/Areas/Topics:
Ad Hoc Networks
;
Data Communication Networking
;
Enterprise Information Systems
;
Internet of Things
;
Sensor Networks
;
Software Agents and Internet Computing
;
Software and Architectures
;
Telecommunications
;
Wireless Information Networks
;
Wireless Network Protocols
Abstract:
Ensure data delivery and extend the network lifetime are challenges that must be addressed when it comes to
deploy a WSN in outdoor harsh environment where it operates over unstable links. The instability of radio
links may induce a connectivity that is time-varying even when nodes are not moving. For these dynamic
topologies, resources allocated to the nodes must be adjusted to the local traffic conditions. Amongst the
proposed solutions, schedule-based protocols achieve an energy efficiency as they allow nodes to sleep during
their inactive periods. As the channel conditions are time-varying, and paths followed by the packets are
changing, inducing an instability in the distribution of the traffic load over the network. This paper is dealing
with the mastering of the size of the reception time slot of the next hop node. Our solution dynamically takes
in consideration the local traffic load to resize the time slots. This adaptive solution is compared with the
fixed-length window sch
eme, it obviously improves the performance of the WSN in terms of cycle length, idle
listening and collision reduction, and achieves suitable data delivery ratio.
(More)