Research On Key Technologies Of Clustering Routing Protocol With Unequal Cluster Radius

In wireless sensor networks,many sensor nodes send the monitoring data to network end users through specific routing algorithms.Restricted the node battery energy,computational performance,and we ususlly deploy the nodes in harsh areas,also it is difficult to replace nodes batteries.However,consideration the cluster routing protocol of WSN routing protocol has the advantages of low energy consumption,efficient data transmission,and easy-to-manage network topology.It is the current research hotspot.This paper mainly research the cluster division,cluster head selection,cluster radius setting and cluster head rotation strategy in the the cluster routing protocol.The main research contents are as follows:1.Aiming at the problem that the change number of cluster head cause some clusters has excessive energe comsumption and make the network’ load unbalanced,we proposed a algorithm which named Best Cluster Number Of K-Means++ Routing Algorithm.Aim to reduce the network energy consumption,we using the energy consumption model of wireless senor network to caculate the best cluster number.And in the first round of network clustering,we take the K-Means++ algorithm applied in wireless network,take the best number of cluster as the initial cluster center to optimize cluster effect,divide each node into appropriate clusters,and carry out the cluster head election in each clusers,then the problems of unequal consunption and the short node life cycle can be avoid.2.Considering the impact of cluster head selection,different cluster radius,cluster head rotation strategy on energy consumption and network load balance.We proposed a algorithm named Fuzzy Cluster Chance And Unequal Radius In Different Round Algorithm.Which combined with the energy of nodes,the distance between nodes and base stations and the distribution density factor of nodes,we use the fuzzy control technology to optimize the cluster head selection.In the unequal radius,Considering that the existing algorithm of unequal cluster radius ignores the influence of node density,proposed a new unequal radius method that combining node energy consumption factor,node distance factor and the node density factor.In the cluster head rotation,change the method that cluster head election and cluster group construction in every round.Proposed a new strategy of rotation that combining global and local cluster head selection,and introducing the distance factor of centroid in cluster to the head selection.Through the improvement of the above aspects,reduce network energy consumption,balance the load between nodes and the overall wireless senor network energy consumption.3.The algorithm which proposed on the above were simulated and compared with the LEACH,LEACH-C,EAUCF,FLECH,EEFRR algorithms,use the network remain energy,the network life cycle,and the different percentage of node death as reference indicator.