Abstract

In wireless sensor networks, the methods for both data collection and data transmission to base station are important factors for sensor node energy consumption. We can transmit the data generated by each node more efficiently using clustering. One of the clustering methods, self-organization clustering, cannot guarantee homogeneous head-node selection. We suggest the adjusted-TTC method, which improves the capacity of the TTC to select a head-node evenly and efficiently in the network field through 2-tier clustering. Adjusted-TTC prioritizes a head-node at the first stage by removing headnodes that are too close to the other head-nodes in the network field. This improves the data transmission energy efficiency among sensor nodes by reducing the number of nonreceiving advertisement messages.

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