Research On Wireless Sensor Network Clustering Routing Protocol

In the application of wireless sensor networks,data transmission process of the nodes consumes a large amount of energy in the Wireless Sensor Network.However the energy of the nodes is limited,which restricts the development of networks.Designing energy-efficient routing protocols to effectively balance network energy consumption and extend network operating cycles has become an important field of wireless sensor network routing design.Clustering routing protocols have great advantages in robustness,scalability and energy efficiency.By summarizing the current existing clustering routing protocols,two methods of how to improve clustering routing protocols are proposed in this thesis:Heterogeneous wireless sensor network clustering routing protocol for energy consumption balance is based on the characteristics of different initial energies of nodes.The node which has more remaining energy is preferentially selected as the cluster head,and then the density and distance parameters are considered in the calculation of threshold to optimize the distribution of cluster heads.And the energy consumption of the network is effectively balanced.The hybrid communication method is used to transfer data between clusters,which reduce the energy consumption of long-distance communication.The energy-efficient distributed clustering routing protocol based on game theory considering the selfishness of nodes in the network.The game theory is applied to the design of clustering routing protocols.Nodes and their neighbor nodes are regarded as participants in the game.Considering the amount of neighbor nodes,the current remaining energy of the node,and the distance to the base station of given nodes to construct the revenue function,and select a corresponding game strategy to optimize the routing performance.A given node obtains a game equilibrium probability of becoming a cluster head node through playing with a node set in a neighbor node area,and the node determines whether it becomes a cluster head according to this probability.Use the advantage parameters to analyze the temporary cluster head to determine the true cluster head election.