Energy efficiency is a major concern in WSNs due to the use of small sized batteries which can neither be replaced nor be recharged. Hence the energy consumption must be as low as possible. One of the traditional approaches used is clustering. Clusters are formed for efficient energy utilization and improving the network performance. In the proposed algorithm, cluster heads are chosen depending on the Huffman coding algorithm. The nodes having the least weight are chosen to be cluster heads. The result obtained is compared with LEACH and the performance is increased by 30% than LEACH.
Index Terms-Wireless sensor networks, Cluster head, Huffman Coding, LEACH
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