TITLE:
An Improved Energy Balanced Dissimilar Clustered Routing Architecture for Wireless Sensor Networks
AUTHORS:
S. Jeba Anandh, E. Baburaj
KEYWORDS:
Wireless Sensor Network, Multi-Hop, Cluster, Cluster-Head, Energy, Routing
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.10,
August
25,
2016
ABSTRACT: In wireless sensor
networks, clustering of nodes effectively conserves considerable amount of energy resulting in increased network
life-time. Clustering protocols do not consider density of nodes in cluster formation, which
increases the possibility of hotspots in areas where the density of nodes is
very less. If the node density is very high, cluster-heads may expend high
energy leading to their early death. Existing cluster protocols that
concentrate on energy conservation have not
exhibited their impact on packet delivery and delay.
In this proposed protocol, clusters are constructed
based on the range of nodes, distance between neighbouring
nodes and density of nodes over a region resulting in the formation of
dissimilar clusters. With this method, the entire sensing region is considered
to be a large circular region with base station positioned at the centre.
Initially, the nodes that can be able to reach base station in a single hop are
considered for constructing inner smaller circular regions over the entire region.
This method is iterated for n-hop nodes until n-concentric circular regions are
formed. These circular boundaries are reconstructed based on a distance metric,
density of nodes and a divergence factor. Using this architecture, network
analysis is done by routing data to the base station from different sized
clusters. Based on simulation results, this new protocol Dynamic Unequal
Clustered Routing (D-UCR), despite being energy
efficient, showed better data delivery ratio and minimized delay when compared
with other traditional clustering
algorithms such as Leach and Equal Clustered Routing.