摘要
为解决移动物联网数据传输过程中存在的数据传输质量不高、网络传输带宽较低等不足,提出了基于节点-链路评估模型的移动物联网数据传输稳定算法。考虑节点移动特性,设计了一种新的基于节点-链路评估模型,实现数据传输过程的多维度评估。随后,根据节点-链路评估模型,提出了数据传输依序度、中继链路控制度、传输能量可控度3个指标;并通过匹配节点的传输功率,设计了基于数据传输依序度的移动物联网链路稳定方法,采用泊松分布模型来构建基于中继链路控制度的节点稳定方法,并通过预估节点受限性能,提出了基于传输能量可控度的节点失效态传输节能方案,分别从节点、链路、能量3个层次优化了移动物联网数据传输性能,有效提高较网络传输的稳定性。仿真实验表明,与基于似然估计补偿机制的移动无线传感网数据控制同步传输算法和基于预发射-精度提升机制的LTE-5G数据传输算法相比,所提算法具有更低的网络拥塞水平和节点受限概率,以及更高的网络传输带宽。
In order to solve the problems of low data transmission quality and low network transmission bandwidth in the process of data transmission of mobile Internet of things,a stable scheme of data transmission of mobile Internet of things based on node link evaluation model is proposed.Considering the characteristics of node movement,a new node link evaluation model was designed to realize multi-dimensional evaluation of data transmission process.Then,according to the node link evaluation model,three indexes of data transmission order,relay link control and transmission energy control were proposed.By matching the transmission power of nodes,a link stability method based on the order degree of data transmission was designed,and the poisson distribution model was used to build a node stability method based on the control degree of relay link,and by predicting the limited performance of nodes,a node failure state transmission energy saving scheme based on the control degree of transmission energy was proposed,so that the data transmission performance of the mobile Internet of things was optimized from node,link and energy,which can effectively improves the stability of the network transmission.The simulation results show that compared with the data control synchronous transmission algorithm based on the likelihood estimation compensation mechanism and LTE-5 G data transmission algorithm based on the pre transmit precision improvement mechanism,this algorithm has lower congestion level and node limited probability,and higher network transmission bandwidth.
作者
唐静
田波
陈华君
Tang Jing;Tian Bo;Chen Huajun(College of Big Data,Tongren University,Tongren 554300,China;College of Automation,Guandong University of Technology,Guangzhou 510006,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2020年第10期194-201,共8页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(61741214)
贵州省科技厅联合基金(黔科合LH字[2017]7322号)
贵州省科技厅科技合作项目(黔科合LH字[2015]7251)资助
贵州省教育厅青年科技人才成长(黔教合KY字[2016]298)。
关键词
移动物联网
稳定传输
节点-链路评估
衰减损耗
数据传输依序度
传输能量可控度
中继链路控制度
mobile internet of things
stable transmission
node link evaluation
attenuation loss
data transmission order
transmission energy controllability
relay link controllability
