Wireless Sensor Network Leach Clustering Algorithm To Improve Research

Low energy adaptive clustering hierarchy is the most important and the mostrepresentative algorithm in the hierarchical wireless sensor network topology controland it is the first hierarchical router protocol that on the basis of clustering protocol.LEACH algorithm can ensure relatively and equably that every node be a cluster headwith the same probability, so that the energy consumption of the nodes in the networkbalanced relatively. But the LEACH algorithm has some disadvantages. For example,the randomness in cluster selecting could be lead to the uneven distribution of clusterhead, also could be lead to the cluster head located in area edge; In the election processof cluster nodes, LEACH doesn’t consider the impact in the campaign for cluster headthat from the remaining members of the cluster energy; LEACH using classical onehop algorithm but lead to the excessive energy consumption.Considering the disadvantages of LEACH, this paper makes the algorithm betterby following points.First, according to the deficiency of LEACH into the stage of cluster head selectthe threshold value, this article limits on the number of nodes in cluster campaign, andby introducing density function, distance function and the average distance functionbetween nodes and neighbors, the LEACH Threshold value is improved.Second, according to the problem of LEACH one hop energy dissipation too much.This article analyses all kinds of transmission mode, then put forward a select mecha-nism for a kind of jump method.Third, because of the cluster head that far away from the base station should betransmit the information from the cluster head that far from the base station, So theconsumption of energy of cluster head that near the base station too fast. To solvesuch a problem in this paper, a kind of control the size of radius of method to balancethe node energy consumption is desired.Through above three LEACH improvement in this paper to draw a new algorithm,The simulation shows that the new algorithm is better than LEACH algorithm inenergy saving.