Research On Node Dormant Scheduling Algorithm Based On Clustering Topology In Wireless Sensor Networks

In recent years,the development of wireless sensor networks has been quite rapid,and it has gradually developed into a new way of information perception and acquisition.Its main components are a large number of mobile or stationary sensor nodes,which are self-organizing and single-hop or multi-hop routing to form a wireless sensor network.These sensor nodes are usually deployed in jungles,volcanoes,deep oceans,deserts and others,where hardships are difficult or difficult for humans to reach.The energy sources of these nodes are usually embedded batteries,which are affected by the volume factor of the nodes,and the energy supply of the batteries is also very high.Limited,at the same time in this monitoring environment is not easy to replace and charge the node battery,so in the case of relatively limited node energy,how to use relatively efficient methods to reduce node energy consumption,so that the network survival time is effective The extension of this is an important challenge in the field of research.Clustering topology control and node dormancy scheduling are two effective methods to save network energy.The nodes in the network are usually distributed in a high density in the monitoring area,and there are many redundant nodes.The node sleep scheduling causes some nodes to enter a sleep state,and the sleep node and the work node rotate with each other,so that the network is survived for a longer time.By adopting the clustering topology control method,the network is divided into clusters similar to subnets,forming a hierarchical structure in the network,and some selected cluster head nodes are responsible for the fusion and processing of data within the cluster,reducing the cluster structure.The communication of the internal nodes reduces the extra energy overhead between the nodes due to mutual communication.In this paper,a sleepy scheduling algorithm based on clustering topology is proposed based on the combination of sensor node dormancy scheduling and sensor network clustering topology control.An area scheduling method is used to establish an optimal scheduling mechanism for redundant nodes in the coverage area.The dormant scheduling of redundant nodes in the fully covered area is implemented,and the mechanism is introduced into the clustering structure of the wireless sensor network.The algorithm sleeps by controlling redundant nodes in the cluster,reducing the data traffic of the cluster head and the number of redundant nodes working in the cluster members,thereby reducing the network energy consumption.Finally,using MATLAB simulation software to simulate the node dormancy scheduling algorithm based on clustering topology,the simulation results show that the redundant node dormancy scheduling algorithm with no clustering is in the network lifetime,number of dormant nodes,redundancy Compared with the degree,the algorithm proposed in this paper can better reduce the energy consumption of network nodes and prolong the network survival time.