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An enhanced stable election protocol for wireless sensor network
...Clustered techniques have since been employed to optimize energy consumption in this energy constrained wireless sensor networks.
We propose an Enhanced-SEP clustering algorithm in a three-tier node scenario to prolong the effective network life-time. Simulation results shows that the Enhanced-SEP protocol achieves better performance in this respect, compared to other existing clustering algorithms such as LEACH and SEP in both heterogeneous and homogenous environments.