Clustering technology used in routing protocols can reduce energy consumption and prolong the lifetime of wireless sensor networks.Cluster head selection is one of the most important parts in clustering routing.An improved selection method (LEACH-EP) based on LEACH is proposed in this paper.Its core is to maintain the structure of clusters unchanged in K rounds.In the first round,cluster head nodes are selected according to LEACH,and then they are selected based on energy prediction in the remaining K-1 rounds.LEACH-EP reduces the updates o...
