面向5G网络的WSN网络节点安全部署算法

Security Deployment Algorithm of WSN Network Nodes for 5G Network

在部署无线传感器网络(Wireless Sensor Networks,WSN)网络节点的过程中,由于缺乏对节点位置的寻优分析,导致节点的覆盖效果和分布效果不理想,为此提出面向5G网络的WSN网络节点安全部署算法。首先,结合目标覆盖区域的三维空间特征,以集合的形式对无线传感器节点进行表征,并采用概率感知的方式计算节点感知状态,构建WSN节点覆盖模型;其次,引入花朵授粉算法,采用局部授粉的方式设置初始无线传感器节点的位置,以WSN节点覆盖模型输出结果最大化为目标函数开展全局授粉,实现对无线传感器节点位置的更新寻优;最后,通过设置缩放步长因子与迭代次数之间的线性关系,实现对寻优精度的控制。测试结果表明,设计算法的节点覆盖率稳定在91.02%以上,均匀度稳定在16.15以上,均处于较高水平。

In the process of deploying Wireless Sensor Networks(WSN)network nodes,due to the lack of optimization analysis of node positions,the coverage and distribution effects of nodes are not ideal.Therefore,a WSN network node security deployment algorithm for 5G networks is proposed.Firstly,based on the three-dimensional spatial features of the target coverage area,wireless sensor nodes are represented in a set form,and the node perception state is calculated using probability perception to construct a WSN node coverage model.Secondly,the flower pollination algorithm is introduced,and the initial position of wireless sensor nodes is set using local pollination.The global pollination is carried out with the objective function of maximizing the output results of the WSN node coverage model,achieving updating and optimizing the position of wireless sensor nodes.Finally,by setting the linear relationship between the scaling step factor and the number of iterations,the optimization accuracy is controlled.The test results show that the node coverage rate of the designed algorithm is stable at over 91.02%,and the uniformity is stable at over 16.15,both of which are at a high level.