基于故障节点无线传感网络的数据汇聚算法  

Data gathering algorithm for fault nodes in wireless sensor network

作　　者：吕真[1] 张浩[2] 李骞[1] 

机构地区：[1]河南牧业经济学院信息与电子工程学院,河南郑州450000 [2]河南牧业经济学院软件学院,河南郑州450000

出　　处：《现代电子技术》2018年第1期32-37,共6页Modern Electronics Technique

基　　金：国家自然科学基金(61103007;U1204618);河南省重大专项(141100110800);河南牧业经济学院科技创新团队(HUAHE201506)~~

摘　　要：核辐射环境的影响和节点能量的有限性,导致无线传感网络(WSNs)节点容易发生故障,如何在基于故障节点WSNs的环境实现有效的数据汇聚已成为研究热点。首先,研究了核辐射对节点射频通信能力的影响,并提出基于核辐射约束下的WSNs的数据汇聚DGP-RA算法。在DGP-RA算法中,节点具有射频和声通信的双通信模式。DGP-RA算法基于奖惩机制,并结合D-S证据理论DST和假设检验理论,识别因核辐射影响而无法通信的故障节点,然后再适应地切换通信模式,抵御辐射影响。仿真结果表明,提出的DGP-RA算法有效地提高了数据传输效率,降低了能量消耗。The node of wireless sensor network （WSN） is liable to fauh because the influence of the nuclear radiation envi- ronment and limitation of node energy, so how to realize effective data aggregation based on fault nodes in WSN environment has become the research hotspot. The influence of nuclear radiation on RF communication ability of nodes is studied. The data gathering protocol for radiation affected （DGP-RA） algorithm for WSNs data aggregation under nuclear radiation restraint is proposed, in which the node has dual modes of radio frequency communication and acoustic communication. The DGP-RA algorithm based on reward and punishment mechanism, Dempster Shafer theory （DST） and hypothesis testing theory are used to identify the fault node which can＇t communicate because the influence of nuclear radiation, and switch the communication modes adaptively to resist the radiation influence. The simulation results show that the DGP-RA algorithm can improve the data transmission efficiency effectively and reduce the energy consumption.

关 键 词：声通信 假设检验 故障 核辐射 无线传感网络 DGP-RA算法 

分 类 号：TN711-34[电子电信—电路与系统] TP393[自动化与计算机技术—计算机应用技术]