Reserch On WSN Routing Protocol Based On Non-cooperative Game

Wireless sensor network (WSN) is composed of a large number of low-power sensor nodes whichcommunicate through multi-hop. All nodes monitor the information of the monitoring area in cooperation.The collected information is transmitted to the base station. With the rise of the Internet of Thingstechnology, as the collection end of the Internet of Things, WSN will have broad application prospects. Asthe nodes energy in WSN is limited, how to design energy-efficient routing protocol, become key issuesneed to be resolved in WSN.Game theory is a branch of mathematics, which has been successfully applied in informationeconomics, it also has application in computer wireless communications and other fields at present. The useof non-cooperative game theory to solve clustering and the election of cluster head in wireless routingprotocols, design energy-efficient routing protocols in the focous of this study.In this paper the mainstream wirless routing protocols are analyzed, and focous on LEACH protocol,analyze the advantages and disadvantages, improve the deficiencies. The main research of this paper is inthe following areas:(1) Based on the domestic and international research of WSN, introuduce the composition of WSN,key technologies, major routing protocols, compare their advantages and disadvantages.(2) Study LEACH in-depth, analyze how it works in details. Find out the deficiencies of the exitingmethods. For the exiting method of cluster election will cause the node to premature death and energyconsumption inequality. Propose improvement with the use of the non-cooperative game. The improvedmethods take full account of the residual energy of the node, the energy consumption of nodes to itsneighbor nodes, the distance between node and base station.(3) Through simulation, compare the protocol LEACH and the improved protocol LEACH-B. Analyzethe performance in the distribution of the cluster head, the survival time of the node and the network. Thesimulation shows that, LEACH-B protocol cluter distribution is more banlanced, the survival time of thenode is longer, the survival number of nodes are more.This algorithm can effectively motivate nodes, makes the cluster distribution more balanced, optimize network performance, extend the life time of the network. Meanwhile, the use of game theory in WSNrouting algorithom provides a new research approach for performance optimization of WSN.