面向多状态节点的移动WSNs的区域覆盖可靠性分析  

Study on Area Coverage-reliability of Wireless Sensor Networks of Multistate Nodes-oriented

作　　者：史记征 刘毓[2] SHI Ji-zheng;LIU Yu(Department of Network and Information Security,Chongqing Vocational Institute of Safety&Technology,Chongqing 404020,China;School of Electronic&information Engineering,Chongqing Three Gorges University,Chongqing 404020,China)

机构地区：[1]重庆安全技术职业学院网络与信息安全系,重庆404020 [2]重庆三峡学院电子与信息工程学院,重庆404020

出　　处：《火力与指挥控制》2021年第5期35-39,共5页Fire Control & Command Control

基　　金：重庆市教委科学研究基金资助项目(KJ1710244)。

摘　　要：监测区域的覆盖要求和向信宿传输数据的可靠性是多状态节点的无线传感网络(Wireless Sensor Networks,WSNs)应用的关键。为了量化覆盖要求和数据传输的可靠性,提出区域覆盖-可靠(Area Coverage Reliability,ACR)指标。ACR指标结合WSN可靠、区域覆盖、能耗、信宿的移动、节点的随机值日率以及节点的多状态。并利用Monte Carlo仿真方法,构建能量矩阵评估节点和值日率对ACR的影响。能量矩阵反映了节点的剩余能量、向邻居节点传输数据所消耗的能量以及网络连通率。仿真结果表明,ACR并不随节点数的增加而呈线性增长,但值日率的增加使ACR下降。The coverage requirement of the monitored area and the reliability of data transmission to information sink are the keys of the application of WSNs of multi-state nodes.To quantify area coverage requirement and data transmission reliability,the area coverage reliability(ACR)index is proposed in this paper.ACR index combines WSN reliability,area coverage,energy consumption,mobility of information sink,random duty rate of nodes,and multi-state nature of sensor nodes.A Monte Carlo simulation approach is utilized to construct the effects of energy matrix evaluation nodes and duty rates on ACR.An energy matrix reflects the residue energy of nodes and the consumed energy of date transmission to neighbor nodes and network connectivity rate.The simulation results show that ACR does not increase linearly with the number of nodes,but ACR decreases with the increase of duty rate.

关 键 词：无线传感网络 区域覆盖 可靠性 多状态节点 蒙卡特洛 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]