© 2015 The Authors. In this paper we propose a dynamic cluster head selection technique, Secure and Fault Tolerant Dynamic Cluster Head (SFDCH) Selection algorithm. The proposed algorithm selects the nodes having the threshold value above the average. From the selected nodes, the node with maximum available energy, at a minimum distance and having maximum throughput is selected as the cluster head. The proposed method is dynamic in nature as selection process is refreshed periodically. The Proposed SFDCH is compared with existing K-means and K-sep methods using netsim simulator. The results prove the efficiency of our SFDCH in terms of accuracy, energy efficiency and enhancement of network lifetime over the existing methods.
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