An Attenuation Model of Node Signals in Wireless Underground Sensor Networks

被引：3
|
作者：
Han, Meng [1 ,2 ]
Zhang, Zenglin [1 ,2 ]
Yang, Jie [1 ,2 ]
Zheng, Jiayun [1 ,2 ]
Han, Wenting [1 ,3 ]
机构：
[1] Northwest A&F Univ, Coll Mech & Elect Engn, Yangling 712100, Xianyang, Peoples R China
[2] Minist Agr, Key Lab Agr Internet Things, Yangling 712100, Xianyang, Peoples R China
[3] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Xianyang, Peoples R China
来源：
REMOTE SENSING | 2021年 / 13卷 / 22期
基金：
中国国家自然科学基金;
关键词：
WUSN; orthogonal test method; soil moisture content; node burial depth; soil compactness; horizontal distance between nodes; AGRICULTURE; SOILS;
D O I：
10.3390/rs13224642
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Wireless underground sensor networks (WUSN) consist of sensor nodes that are operated in the soil medium. To evaluate the signal attenuation law of WUSN nodes, in this study, a WUSN node signal transmission test platform was built in the laboratory. The signal intensity data of WUSN nodes under different experimental conditions were obtained by orthogonal test. The WUSN node signal attenuation model was established. The test results show that the transmission of WUSN node signals in the soil medium is seriously affected by soil moisture content, node burial depth, soil compactness, and horizontal distance between nodes. The R-2 of the models was between 0.790 and 0.893, and the RMSE of the models was between 2.489 and 4.192 dbm. Then, the WUSN node signal attenuation model involving the four factors was established. The R-2 and RMSE of the model were, respectively, 0.822 and 4.87 dbm. The WUSN node signal attenuation model established in this paper can facilitate WUSN node deployment.
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收藏
页数：16
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