A Study of the Model which Can Improve LEACH Protocol

Abstract

In the application process of wireless sensor network, LEACH protocol solves the problem of data fusion well, and reduces data exchanges between nodes and bases. Based on the research, this paper proposes an advanced LEACH protocol, which is fused by the data of cluster head, and each time when transmits data to the neighbor shortest cluster head, this protocol gets reduction in the aspects of theoretical existing and energy consumption, and improvement in using efficiency. The LEACH protocol Low Energy Adaptive Clustering Hierarchy (LEACH) [1] is designed by Hein Zelman W et al from college of electronic engineering and computer science of MIT University for the wireless sensor network. The protocol divides all nodes in the network into several clusters, in which the cluster members are responsible for the collection of user needs in the news, and the cluster head is responsible for the management of cluster member cluster members, for the allocation of communication time slot to receive the cluster members messages, and these messages are forwarded to fusion processing, the processed data to the base station node. Compared with the planar routing, the cluster structure through data fusion, can eliminate redundant data, reduce network traffic, effectively save energy, and prolong the network survival time. But the protocol still has some problems, such as the burden of cluster heads is too heavy, more energy consumption, cost of frequent building clusters bring and network load balancing.