Research On WRSNs Network Charging Cluster Division In One-to-one Charging Mode

In wireless rechargeable sensor networks(WRSNs),whether a node could obtain energy supplement in time is directly related to the stability of the network;accordingly,rationally dividing the charging cluster is related to energy scheduling efficiency and rationality.In this study,based on the characteristics of WRSNs,according to the distribution characteristics of the nodes and the routing architecture,the charging clusters are divided from static and dynamic aspects.The specific research work is as follows:Combined with the uniform distribution of nodes in WRSNs,based on the static energy consumption model of plane routing protocol,a static clustering model of charging clusters using regular hexagonal full coverage is proposed.From the optimal coverage angle,the four charging cluster partitioning structures consisting of odd(even)uniform distribution and flat(convex)regular hexagonal charging cluster structures are compared and analyzed.It is concluded that the uniform distribution of even-numbered columns and the flat hexagonal charging cluster structure is optimal.On this basis,the optimal clustering method(OCCLBS)considering the distance factor of the charging location to the base station is proposed,and the distance factor optimal clustering method(OCDC-CLBS)considering both the charging distance and the charging position to the base station is proposed.The simulation shows that the proposed OCDC-CLBS optimal clustering method is better in terms of the MC cumulative consumption time of completeing the charging task,as well as the MC moving distance,energy consumption and energy utilization.Considering the dynamic energy consumption of network nodes,based on the dynamic energy consumption model characteristics of clustering routing protocol,the common nodes and routing cluster head nodes in the network are hierarchically clustered for charging clusters,a stratified dynamic energy consumption charging cluster division model is proposed;its main idea is to divide the common nodes with a regular hexagonal charging cluster structure,and the circular charging cluster divides the routing cluster head nodes to achieve the purpose of dynamically supplementing the energy balance of the network nodes.The simulation results show that the stratified clustering method(SCCD)is superior to the regular hexagon clustering method in terms of node death,the MC cumulative consumption time of completeing the charging task and the MC moving distance,energy consumption and energy utilization.The random distribution of nodes in WRSNs is analyzed.Based on the characteristics of the static energy consumption model of the plane routing protocol,the nodes obtain their neighbors(transmission angle)by the energy transmitting distance,and propose a non-full coverage circular-density static energy consumption charging cluster division model according to the number of adjacent nodes.Considering the dynamic energy consumption of the network node,based on the dynamic energy consumption model of the clustering routing protocol,according to the charging radius,the circular charging cluster of the node to be charged is obtained,and the central position of the circular charging cluster intersection area of the node is the charging position.The circular-cross dynamic energy consumption charging cluster division model is proposed.From the dead state of the node,the accumulated consumption time of the MC,and the moving distance,energy consumption and energy utilization of the MC,the simulation comparison shows that the circular-density clustering method(CDCM)is better than the regular hexagonal clustering method;The circular-cross clustering method(CCCM)is optimal.