摘要
针对无线传感网络数据传输中链路抖动频繁、抗噪性能较差、频谱漂移等问题,提出了一种基于正交冗余拟态调度机制的无线传感网络数据传输算法。利用信道间信号冲激频谱与信号瞬时能量的正交特性,设计了正交冗余传输方案,实现了对莱斯噪声全频谱擦除及冗余信号频谱的超宽带传输。基于节点信号发射的拟态特性和LTE-5G信号的频率漂移特性构建了跳频调控阈值,显著增强算法的抗抖动性能。该算法具有较高的数据传输带宽与抗噪性能,较低的数据丢包率和信道误码率。
In view of the problems of frequent link jitter, poor anti-noise performance and spectrum drift in wireless sensor network data transmission, a data transmission algorithm for such network based on quasi-state scheduling mechanism of orthogonal redundancy is proposed. By using the orthogonal characteristics of impulse spectrum and instantaneous energy of signals between channels, an orthogonal redundancy transmission scheme is designed to erase the full spectrum of Rice noise and transmit the spectrum of redundant signals in ultra-wideband. The frequency hopping threshold is constructed based on the pseudo-state characteristics of node signal transmission and the frequency drift characteristics of LTE-5 G signal, and the anti-jitter performance of the algorithm is significantly enhanced. This algorithm has high data transmission bandwidth and anti-noise performance, low data packet loss rate and channel error rate.
作者
李长春
LI Changchun(Chuzhou Vocational Technology College, Chuzhou 239000, China)
出处
《实验技术与管理》
CAS
北大核心
2019年第9期124-127,136,共5页
Experimental Technology and Management
基金
2019年度安徽高效自然科学研究项目(KJ2019A1136)
2017年安徽省高等学校省级质量工程资助项目(2017mooc293)
2018年滁州职业技术学院校级重点科研立项课题(YJZ-2018-13)
2018年度滁州职业技术学院校级教学质量立项课题(jxtd004)
关键词
数据传输算法
无线传感网络
正交冗余传输
拟态调度机制
频谱漂移
data transmission algorithms
wireless sensor network
orthogonal redundant transmission
mimetic scheduling mechanism
spectrum drift
