Improvement and Simulation of A Layered Routing Protocol

Based on analysis of design goal of WSN(wireless sensor network) routing protocol and in accordance with the idea of LEACH protocol,the load balance and the tree-making in a cluster are integrated,and by controlling the position between the cluster head,the distribution of the cluster becomes more uniform.Meanwhile the nodes in the cluster,based on its height value,form a tree,and the data collected by these nodes is transferred along the tree,the data transmission mode of cluster nodes is changed signle-hopping made to multi-hopping mode.Thus the network energy consumption is balanced.The theoretical analysis and simulation results indicate that the improved protocol could greatly prolong the network lifetime and raise the data collection quantity of sink node.