Cluster_head selection approach based on Energy and Distance

To avoiding the deficiency of energy-saving in the Low Energy Adaptive Clustering Hierarchy(LEACH) of Wireless Sensor Network, an improved protocol-the Energy and Distance Based Clustering Protocol(EDBCP) is proposed. The energy and distance are introduced into the cluster_head selection method. The optimal number of cluster_heads is determined, the distribution of the heads can be more balanced, and the lifetime of WSN be extended.