Energy efficient algorithm for heterogeneous wireless sensor network

Wireless sensor networks (WSNs) are composed of a large number of sensor nodes with sensing capability. The critical challenges in such network is the limited lifetime of the battery in the sensor node. Hence, an efficient node clustering algorithm to the heterogeneous network approach can be adopted to increase the lifetime of the network. In this paper, we proposed a new node clustering algorithm which called as ETLE (Efficient Three Level Energy) for selecting the cluster head in a distributed approach to three level hierarchical WSNs. The work has been compared with the EEHC algorithm in terms of a lifetime of the network. As a result, it shows that our proposed method may improve 10% the lifetime of the WSNs.