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Energy efficient techniques play a significant role in saving the energy consumption of the network and to maximize the network lifetime. With the energy constrained nature of sensor nodes, it is very important to make efficient use of power in order to increase the lifetime of network. One of the most important design criteria for Wireless Sensor Networks (WSNs) is energy efficiency. Clustering approach plays an important role for extending the lifetime of the network. In this paper, the authors analyze a dual cluster head technique for this purpose.
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