无线传感网络多节点通信链路质量检测算法

为提升无线传感网络的扩展性和通信性能,研究无线传感网络多节点通信链路质量检测算法。基于稳定路由协议设计了无线传感网络多节点通信链路质量检测算法,利用通信节点分析报文确认邻居节点间距,通过非参数局部线性核平滑方法依据邻居节点间距建立信号获取平滑后的信号接收强度。判断无线传感网络中的节点是否来自上游节点分组的平滑后信号接收强度后,采取滑动窗口局部多项式拟合方法建立链路质量检测模型,通过链路质量检测结果判断无线传感网络中该链路中通信节点移动状态,通过通信节点移动状态判断链路质量。实验结果表明,采用该算法可准确检测无线传感网络多节点通信链路质量,且在节点数量增加时检测效果依然良好,具有较好的扩展性。

Research on Quality Detection Algorithms for Multi-node Communication Links in Wireless Sensor Networks

In order to improve the scalability and communication performance of wireless sensor networks, the multi-node communication link quality detection algorithm of wireless sensor networks is studied. Based on the stable routing protocol, the multi-node communication link quality detection algorithm of wireless sensor network is designed. The communication node is used to analyze the message to confirm the neighbor node spacing. The non-parametric local linear kernel smoothing method is used to establish the signal according to the neighbor node spacing to obtain the smoothed signal reception. Intensity, determine whether the node in the wireless sensor network is from the smoothed signal reception strength of the upstream node group, and adopt a sliding window local polynomial fitting method to establish a link quality detection model, and determine the wireless sensor network through the link quality detection result. The communication node moves state in the link, and the link quality is judged by the communication node mobility state. The experimental results show that the proposed algorithm can accurately detect the quality of multi-node communication links in wireless sensor networks, and the detection effect is still good when the number of nodes increases, which has good scalability.