Energy-efficient clustering routing algorithm for heterogeneous wireless sensor networks

Energy heterogeneity is ubiquitous in wireless sensor networks. Because of nodes' initial energy of multi-level energy heterogeneity in wireless sensor networks distributing within a certain scope randomly, this paper proposed an Energy-efficient clustering routing algorithm which is suit to the heterogeneous environments in wireless sensor networks to economize the nodes' energy exploiting the energy heterogeneity and to extend the stability period of the network. The nodes of the cluster select the cluster head based on the current residual energy and the distance to the cluster centroid, and then accomplish the collection of data and the two-hop data transmission. The simulations indicate that the proposed algorithm balances the energy consumption among sensor nodes much better and prolongs the WSNs life time efficiently.