  Wireless sensor network (WSN) consists of a group of dedicated sensors nodes
which are distributed over a certain area for observing and recording the
physical conditions (like temperature, sound, pressure) of the environment and
organizing the collected data at a central location. These Sensor nodes are
powered by a battery, so energy conservation becomes an important aspect in
WSN. The Paper proposes a way of combining traditional LEACH (Low Energy
Adaptive Clustering Hierarchy) with Mobile Sink and Rendezvous Nodes (RN Nodes)
along with some changes in terms of cluster head selection process. The paper
aims at decreasing the number of dead nodes which in turn will relate to a
increase in the total network lifetime. Particularly for large regions the
proposed algorithms outperforms traditional Leach as proved in the Simulation
Results.
