TITLE:
Reduction of Single Clusters in LEACH Protocol for Wireless Sensor Networks
AUTHORS:
Yaye Mbekhe Sarr, Cheikh Sarr, Bamba Gueye
KEYWORDS:
Wireless Sensor Network (WSN), Cluster-Head, Cluster, Election, Energy Saving, Performance
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.12,
December
18,
2015
ABSTRACT: Clustering in wireless sensor networks (WSN) is an efficient way to structure
and organize the network. The cluster-head (CH) forms dominant set in the network
which is responsible for the creation of clusters, maintenance of the topology and
data aggregation. LEACH (Low Energy Adaptive Clustering Hierarchy) is one of the
most prominent hierarchical routing protocols used in Wireless Sensors Networks
(WSN). Many protocols have been proposed in the literature to improve LEACH protocol.
The cluster formation in LEACH is probabilistic, therefore there is heterogeneous
size of cluster in the network and sometimes singleton, i.e. cluster with only one node could appear. These singletons directly
send information to the base station (BS). Consequently they consume more energy
due to the distance to the base station. This paper proposes a hierarchical routing
protocol based on LEACH called LEACH-based SNCR that reduces singletons and balances
the energy consumption between sensors. Simulations results show that LEACH-based
SNCR increases the network lifetime compared to LEACH.