摘要
为了提高多信源无线传感网络的传输性能,提出基于数据汇聚的多信源无线传感网络带宽时延感知方法。采用卡尔曼预测对多信源无线传感网络中的单个信道带宽进行实时感知和测量,并采用中位数滤波方法估计网络单个信道的往返时延,消除其他干扰因素对时延估计的影响;通过分类型信道时延数据汇聚方法对多个信道带宽和时延感知数据进行汇合处理,实现对传感网络整体时延性能的全局感知。仿真结果表明,该方法在实时感知和测量带宽方面,可以取得准确的单个信道带宽估计结果,信道1和信道3的相对误差均接近为0,达到较小的时延抖动,并实现对多信源无线传感网络信道延迟数据进行高效的汇聚,能够满足各种应用场景对于实时性和稳定性的要求。
In order to improve the transmission performance of multi-source wireless sensor networks,a bandwidth delay sensing method based on data aggregation is proposed for multi-source wireless sensor networks.Kalman prediction is used to perceive and measure the bandwidth of a single channel in real time in a multi-source wireless sensor network,and median filtering method is used to estimate the round-trip delay of a single channel in the network,eliminating the influence of other interference factors on delay estimation.By using the method of grouping channel delay data aggregation to aggregate multiple channel bandwidth and delay sensing data,global perception of the overall delay performance of the sensor network is achieved.The simulation results show that the proposed method can achieve accurate single channel bandwidth estimation in real-time perception and measurement of bandwidth.The relative errors of channel 1 and channel 3 are both close to 0,achieving small delay jitter and achieving efficient aggregation of channel delay data for multi-source wireless sensor networks.It can meet the requirements of real time and stability in various application scenarios.
作者
杨萃洁
唐亮
YANG Cuijie;TANG Liang(School of Automotive and Information Engineering,Guangxi Eco-Engineering Vocational and Technical College,Liuzhou Guangxi 545004,China;School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin Guangxi 541004,China)
出处
《传感技术学报》
北大核心
2025年第7期1315-1320,共6页
Chinese Journal of Sensors and Actuators
基金
教育部科技发展中心2021立项项目(2020ITA03005)。
关键词
多信源无线传感网络
数据汇聚
卡尔曼预测
带宽时延
感知数据
multi source wireless sensor network
data aggregation
Kalman prediction
bandwidth delay
perceived data
