Study And Simulation On Routing Protocol Algorithm Of Wireless Sensor Network

Wireless sensor network is widely applied in military field and system of forest anti-fire, and routing technique is one of the core factors in wireless sensor network. The intention of the paper is how to save power, and how to balance power consumption of nodes as well as improve communication capability. Meanwhile, it focus on routing algorithm of WSN in an environment which is a large scale network and full of dense nodes.Due to the limitation of the nodes, how to use it efficiently and how to prolong average life-span of the network become the hottest topic now. Firstly, this paper made an improvement on the movement of nodes in AODV algorithm. Based on NS2, it did simulation and got result including energy consumption, balance time, packet loss rate, the amount of data transmission, node delay and average network life. Then it did analysis in detail on Low—Energy Adaptive Clustering Hierarchy(LEACH) algorithm and improved method of selection of cluster heads. Finally, it focused on cluster division and how to set up power-efficient routing protocol as well as simulation about improved algorithm.There some creative points in this paper including moving nodes which are originally immobile, selecting optimal number of cluster heads, saving energy when heads working, improving the protocol in nodes telecommunication. The conclusion shows that new method help to improve the efficiency of nodes a lot as well as prolong span of the whole network.