功率自适应调节WSN故障容错算法  

A fault tolerance algorithm based on adaptive power regulation for wireless sensor network

作　　者：沈玮娜 胡黄水[1] 王宏志 王莹[1] 

机构地区：[1]长春工业大学计算机科学与工程学院,吉林长春130012

出　　处：《长春工业大学学报》2017年第1期66-72,共7页Journal of Changchun University of Technology

基　　金：吉林省发改委经济结构战略调整引导资金专项项目(2014Y125);吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2015]第100号);吉林省科技厅科技发展计划项目(20140204037GX)

摘　　要：提出一种基于功率自适应调节的故障容错算法来容忍网络的能量耗尽和随机故障,通过自动调节节点的发射功率来减小因节点间干扰而引起的通信链路故障.当节点的剩余能量低于阈值时,选择其邻居节点中剩余能量最大的节点并以最小功率来提供其相应服务以避免因节点能量耗尽而引起的节点失效故障。仿真测试结果表明,容错算法在收包率、故障恢复延时以及网络平均能耗方面具有较好的表现。A fault tolerance algorithm is proposed based on adaptive power regulation to tolerate the energy consumption and random false.The transmiting power is regulated to decrease the communication malfunction caused by interference among the nodes.When the rest power is less than the threshold,the node with maximum remain power is selected and offer the minimum power to ensure the services,and the node malfunction is avoided.Simulations show that the algorithm is with good performance in the aspect of packet delivery ratio,fault recovery delay and average energy consumption.

关 键 词：无线传感器网络 故障容忍 功率自适应调节 均衡能量消耗 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]