摘要
开展物联网异构节点部署优化时,若节点部署位置不合理,会直接影响物联网的使用寿命,为此提出基于FFT算法的物联网异构节点部署优化方法。根据物联网异构节点的通信范围,确定网络节点遇到障碍物后的通信半径,以此获取物联网在监测目标区域覆盖率;计算物联网异构节点的虚拟力,引入通信门限控制自适应节点间虚拟力范围,保证物联网的运行平稳;采用FFT变换算法建立虚拟力函数模型,结合基函数矩阵,构建节点虚拟力目标优化函数对节点虚拟力实施自适应优化,基于优化结果实现物联网异构节点部署优化。实验结果表明,利用方法开展物联网异构节点部署优化时,节点部署优化性能高、效果好。
When optimizing the deployment of heterogeneous nodes in the Internet of Things(IoT),the reasona⁃ble deployment position will directly affect the service life of the IoT.Therefore,based on FFT algorithm,a method for optimizing the deployment of heterogeneous nodes in the IoT was proposed.According to the communication range of heterogeneous nodes in IoT,the communication radius of the node after encountering obstacles was determined.On this basis,the coverage rate of IoT in the monitored target area could be calculated.Meanwhile,the virtual force of heterogeneous nodes in IoT was calculated,and the communication threshold was used to control the virtual force range between adaptive nodes,thus ensuring the stable operation of IoT.Moreover,the FFT transformation algorithm was adopted to construct a virtual force function model.Combined with the basis function matrix,a target optimization function was constructed to optimize the virtual force of nodes adaptively.Finally,the deployment optimization of het⁃erogeneous nodes in IoT was realized based on the optimization results.Experimental results show that this method has better performance and effect on node deployment optimization.
作者
贾徐庆
李杰
曹鹏飞
JIA Xu-qing;LI Jie;CAO Peng-fei(Nanjing University of Chinese Medicine Hanlin College,Jiangsu Taizhou 225300,China;School of Software,Southeast University,Jiangsu Nanjing 210000,China;Department of Computer Science and Engineering,San Jiang University,Nanjing Jiangsu 210012,China)
出处
《计算机仿真》
北大核心
2023年第12期446-450,共5页
Computer Simulation
基金
三江学院重点教改项目(J20061)
南京市工业和信息化局、南京市财政局项目(宁工信综投[2020]184号,经费编号:SE179-2021)。
关键词
物联网
异构节点
虚拟力计算
FFT algorithm
Internet of Things(IoT)
Heterogeneous node
Virtual force calculation
