Research and improvement on the LEACH protocol of wireless sensor network

LEACH protocol is a hierarchical network routing which applied in wireless sensor network.Based on the shortcomings in LEACH protocol including random generation of cluster heads,without consideration on the residual energy of nodes,direct communication between clusters and base stations and so on,an improved protocol named LEACH-E is proposed,which not only gives sufficient consideration to the residual energy of nodes,but also adds the rounds of network experience into the process of selecting clusters.The NS2 simulation experiment shows that the service time of the first network node is extended by about 11.11%,and the improved protocol prolongs the service life of wireless sensor network effectively.