Review On Various LEACH Variants

due to limited battery of sensor nodes, energy efficiency becomes weak side of the WSNs. This paper has focused on energy efficient protocols of WSNs. Since no replacement and charging are available for sensor nodes, so utilizing them in optimized manner has open research for sensor researchers. Many energy efficient protocols have been introduced so far and this paper has focused on some wellknown energy efficient protocols. The review has shown that the Ant Colony Optimization based energy efficient protocols have proficient results over the existing ones. Keywords—Wireles Sensor Networks(WSN), Ant Colony Optimization(ACO), Cluster Head(CH), Base Station(BS).

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