The Topological Characteristics Analysis And Robustness Research Of Wireless Sensor Network

With the rapid development of wireless sens or network,currently,it is mainly used for the internet of things,medical treatment and military and so on,because the network technology can be im plemented using the self-organizing mechanism of wireless.And compared with the traditional network,it has some advantages,such as strong network expansibility,simple hardware design,low input and so on.W ith the wireless communication technology,digital electronic technology and micro-electro-mechanical system(MEMS)technology boom ing,wireless sensor network(WSN)technique has been successfully developed based on coordinate large-scale sensor nodes.In the wireless sensor networks,the nodes of sensor network appear unstable phenomenon in operation process,this is be cause there are plenty of nodes which are easily affected by environm ental factors a nd interference in the network.Therefore,according to the above problem s,how to th rough topology characteristics of sen sor network to improve the stabilit y of the sensor network ef fectively,which is related to the long-term development of the sensor network.Sensor network is the network system that is by supervision,c ontrol and wireless co mmunication integration ef fectively.Because of the close relationship between nodes in the network,the network topology is prone to distortion if the external environment and internal node is failure.The dynamic characteristics of wireless sen sor network and the com plexity of the relationship between nodes make network has complex node variables,so for the com plex changes using complex network analysis method to research is conducive to the operation law of wireless sensor networks on the whole.In this paper,the main work is as follows:1.The brief overview of sensor netw ork structure characteristics and the application of reality.Classifying the co mplex network structure and m ake a brief introduction,conduct experim ent simulation analysis of the complex network power-law distribution,spectral density and robustness.Elicit BBV weighted network analysis which is suitable for sensor ne tworks based on com plex network analysis method.2.Base on BBV weighted network,com bine with clustering protocol,local world theory to construct the se nsor network topology and us e complex network topology characteristics analysis method to conduct analysis of the simulation of the node degree and strength,edge weight and the spectral de nsity to confirmed the imbalance of sensor networks.3.simulate the running condition of sensor networks,simulate the robustness that the Sensor networks show when Sensor ne tworks is in th e attack,put forward the improvement scheme of S trengthen the ne twork robustness From the results of simulation experiments and verify it.