摘要
由于低传输时延和高带宽,射频(Radio Frequency,RF)信号广泛应用于无线传感网络(Wireless Sensor Network,WSN)节点间的通信。然而,外界电磁或核辐射影响了基于RF的WSN通信。电磁或核辐射导致节点通信间歇性中断,将此类节点称为故障节点。故障节点可能能够正常感测环境,但会间歇性失去通信能力,这就形成动态的通信黑洞。为此,分析了故障节点对WSN的影响。推导了故障节点行为的数学模型,理论上分析了故障节点对网络能耗及数据包传递率的影响。仿真数据证实,故障节点的存在降低了网络性能。
Due to low propagation delay and high bandwidth,Radio Frequency(RF)signal is widely used for communication among nodes in a Wireless Sensor Network(WSN).However RF-based wireless sensor nodes suffer from communication impairment in the presence of external electromagnetic or nuclear radiation.When a sensor node cannot temporarily communicate with other nodes in the WSN in the presence of external radiation the node is termed as a faulty one.The faulty nodes may able to sense their surrounding correctly but cannot communicate with others temporarily.As a result,this forms dynamic communication balck holes.Therefore,the effects of faulty nodes on WSN are analyzed.A mathematical model of faulty nodes is deduced,then the effects on network energy consumption and packet transmissibility are theoretically analyzed.The simulation data prove that the existence of faulty nodes degrades the performance of the network.
作者
郭卉
章详宇
GUO Hui;Zhang Xiang-yu(Changde Power Supply Branch,North China Electric Power University,Changde 415000,China;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China)
出处
《火力与指挥控制》
CSCD
北大核心
2021年第4期14-18,共5页
Fire Control & Command Control
基金
国家自然科学基金资助项目(51507065)。
关键词
无线传感网络
通信黑洞
故障节点
能耗
数据包传递率
wireless sensor network
communication black hole
faulty nodes
energy consumption
packet transmissibility
