DEVELOPMENT OF A MODIFIED ENERGY-EFFICIENT CLUSTERING WITH SPLITTING AND MERGING FOR WIRELESS SENSOR NETWORKS USING CLUSTER-HEAD HANDOVER MECHANISM
DEVELOPMENT OF A MODIFIED ENERGY-EFFICIENT CLUSTERING WITH SPLITTING AND MERGING FOR WIRELESS SENSOR NETWORKS USING CLUSTER-HEAD HANDOVER MECHANISM
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Date
2018-03
Authors
BRAIMOH, Jinadu Agbomoudu
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Abstract
Energy efficiency is one of the most important challenges for Wireless Sensor Networks
(WSNs). This is due to the fact that sensor nodes have limited energy capacity. Therefore, the
energy of sensor nodes has to be efficiently managed to provide longer lifetime for the network.
To reduce energy consumption in WSNs, a Modified Energy Efficient Clustering with Splitting
and Merging (ππΈπΈπΆππ) for WSNs using Cluster-Head Handover Mechanism was
implemented in this research. This model used information of the residual energy of sensor
nodes and a suitable Cluster Head (CH) handover threshold to minimize energy consumption
in the network. A backup CH was incorporated into the model to take over the responsibilities
of the CH once the CH handover threshold is reached. The energy consumed by nodeβs
amplifier was varied with its transmission distance. This work was carried out using MATLAB
R2013a and the performance of the modified model was validated in terms of network lifetime
and residual energy ratio with an existing energy reduction technique in a self-organized
clustering of WSNs. Average improvements of 7.5% and 50.7% were achieved for the network
lifetime and residual energy ratio respectively which indicate a significant reduction in energy
consumption of the network nodes. Also, scalability and robustness test were carried out with
respect to network lifetime by randomly adding and removing a number of nodes from the
network. Average improvements of 7.8%, and 10.3% were achieved for scalability and
robustness test respectively. The results of this work showed that ππΈπΈπΆππ has a better residual
energy ratio, scalability, robustness and a longer network lifetime when compared with an
existing energy reduction technique in a self-organized clustering of WSNs
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE
STUDIES, AHMADU BELLO UNIVERSITY, ZARIA
IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF A
MASTER OF SCIENCE (M.Sc.) DEGREE IN TELECOMMUNICATIONS
ENGINEERING
DEPARTMENT OF COMMUNICATIONS ENGINEERING
FACULTY OF ENGINEERING
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
Keywords
DEVELOPMENT,, MODIFIED ENERGY-EFFICIENT CLUSTERING,, SPLITTING,, MERGING,, WIRELESS SENSOR NETWORKS,, CLUSTER-HEAD HANDOVER MECHANISM