摘要
针对无线传感网络(wireless sensor networks,WSNs)的数据聚融问题,提出一种基于信任评价的低能耗的数据聚融算法,记为RDFT。构建逻辑拓扑,将监测区域划分为不同监护程度的子区域。传感节点在传输数据前,评估感测数据的信任值,只有可信度高于阈值的数据才允许传输;在传输数据时,节点利用距离、能量和链路质量信息计算上行节点的转发资本值,选择具有最高资本值的节点作为下一跳转发节点。仿真结果表明,RDFT算法在能耗、端到端传输时延方面的性能均优于同类算法SFEB、RAG。
For data aggregation in wireless sensor networks(WSNs),reliable data based data fusaggregation and transmission(RDFT)algorithm was proposed.Logic topology was constructed,and the interesting area was divided into several different reliable sub-regions.Sensor node computed the reliable value of sensing data before transmitting the sensing data.Only data with reliable values that were bigger than the threshold were transmitted.When transmitting data,nodes computed the forwarding capital of downstream node according to the distance,energy and link.The node with maximum forwarding capital was selected to be next-hop forwarding node.Simulation results show that RDFT algorithm outperforms the similar SFEB and RAG algorithms in terms of energy consumption and end-to-end delay.
作者
高翔
甘昕艳
秦川
GAO Xiang;GAN Xin-yan;QIN Chuan(Department of Computer Teaching,Guangxi University of Chinese Medicine,Nanning 530200,China)
出处
《计算机工程与设计》
北大核心
2018年第4期1047-1052,共6页
Computer Engineering and Design
基金
广西高等教育本科教学改革基金项目(2015JGB269)
关键词
无线传感网
数据聚融
信任评价
可信度
转发资本
wireless sensor network
data fusaggregation
trust evaluation
reliable value
forwarding capital