Improvement On LEACH Agreement Of Wireless Sensor Network

With the rapid development of micro-electro-mechanism system (MEMS), system on chip(So C), low-power embedded technology, sensor technology and wireless communication,wireless sensor network technology also has been leap-style development in recent years. As the core of Internet of Things technology, Wireless Sensor Network (WSN) is a kind of topology dynamic network formed by a large number of micro-intelligent sensor nodes with data acquisition, data processing and communication capability in self-organization. It has strong resistance to destruction, strong adaptability and the ability to quickly expand and so on,so it is widely used in intelligent home, industrial control, environmental monitoring, traffic control, medical care, military and other important areas. At present, there are energy problems in wireless sensor networks and one of the key reasons to limit the development of wireless sensor networks. Routing technology is one of the most important points in wireless sensor networks. By improving the wireless routing protocol in the network, Wireless sensor network energy consumption issues,thereby extending the life of the entire wireless sensor network. In recent years, more and more experts and scholars to carry out related technology research and discussion work, more and more related routing protocols and algorithms have been proposed,and get some results.In this paper, we choose the widely used LEACH (low energy adaptive clustering hierarchy) protocol as the basis of the study. In view of the unreasonable selection of cluster head in LEACH protocol, the uneven distribution and the energy consumption of cluster head nodes, the LEACH - KPPE protocol has been proposed based on K - means ++ Clustering Routing Algorithm. Firstly, the optimal cluster head node number is deduced according to the energy consumption model of LEACH protocol. Then, the clustering algorithm of LEACH is optimized by using the clustering algorithm of K-means ++ in conjunction with the optimal cluster head node number. At the same time fully consider the energy and distance factors to control the selection of cluster head node, and the data transmission path is optimized for different node distribution environment, so that the data transmission path can be optimized.Finally, through the simulation software to simulate and analyze the LEACH routing algorithm and the new LEACH-KPPE routing algorithm. Experiments show that the LEACH-KPPE algorithm can effectively improve the unequal distribution of cluster head nodes, the uneven energy consumption and the stability of the network in the LEACH algorithm. And improve the energy consumption and the energy of the whole network to a certain extent utilization,effectively extending the network life cycle.