Abstract:
A wireless sensor network (WSN) is a collection of hundreds to thousands
of compact, battery-operated sensors. They are developed to gather useful
information from the nearby environment. Depending on the type of application,
the sensors have to work for months to years with finite energy resources.
In some extreme environments, the replacement of energy resources is challenging
and sometimes not possible. Therefore, it is vital for sensors to perform
their duties in an energy efficient way to improve the durability of the
network. This thesis proposes an energy-efficient centralized cluster-based
routing method. This routing method uses a two-level hierarchy of cluster
heads to use the energy of sensors efficiently and to cut back the frequency
of the cluster formation. The performance of this method is compared with
that of the Low-Energy Adaptive Clustering Hierarchy Protocol (LEACH).
The simulation results show that the proposed protocol outperforms that of
its comparative by 15 percent in terms of network lifetime, 12.5 percent in
overall energy consumption,and 15 percent in throughput and efficiency.
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