Hauptseite > Publikationsdatenbank > Hybrid Wireless Underground Sensor Networks: Quantification of Signal Attenuation in Soil > print

001     5535
005     20180208201844.0
024 7 _ |2 DOI
|a 10.2136/vzj2008.0138
024 7 _ |2 WOS
|a WOS:000268871900022
037 _ _ |a PreJuSER-5535
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Environmental Sciences
084 _ _ |2 WoS
|a Soil Science
084 _ _ |2 WoS
|a Water Resources
100 1 _ |0 P:(DE-Juel1)129440
|a Bogena, H. R.
|b 0
|u FZJ
245 _ _ |a Hybrid Wireless Underground Sensor Networks: Quantification of Signal Attenuation in Soil
260 _ _ |a Madison, Wis.
|b SSSA
|c 2009
300 _ _ |a 755 - 761
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |0 10301
|a Vadose Zone Journal
|v 8
|x 1539-1663
|y 3
500 _ _ |a We gratefully acknowledge financial support by the SFB/TR 32 "Pattern in Soil-Vegetation-Atmosphere Systems: Monitoring, Modelling, and Data Assimilation'' funded by the Deutsche Forschungsgemeinschaft (DFG).
520 _ _ |a Wireless sensor network technology allows real-time soil water content monitoring with a high spatial and temporal resolution for observing hydrological processes in small watersheds. The novel wireless soil water content network SoilNet uses the low-cost ZigBee radio network for communication and a hybrid topology with a mixture of underground end devices each wired to several soil sensors and aboveground router devices. Data communication between the end and router devices occurs partially through the soil, and this causes concerns with respect to the feasibility of data communication due to signal attenuation by the soil. In this study, we determined the impact of soil depth, soil water content, and soil electrical conductivity on the signal transmission strength of SoilNet. In a first step, we developed a laboratory experimental setup to measure the impact of soil water content and bulk electrical conductivity on signal transmission strength. The laboratory data were then used to validate a semi-empirical model that simulates signal attenuation due to soil adsorption and reflection and transmission at the soil boundaries. With the validated model, it was possible to show that in the case of a soil layer of 5 cm, sufficient power will remain to ensure data communication over longer distances for most soil conditions. These calculations are fairly simplified and should be considered as a first approximation of the impact of attenuation. In actual field situations, signal transmission may be more complex. Therefore, a field evaluation of signal attenuation is a crucial next step.
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|a Terrestrische Umwelt
|c P24
|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |2 WoSType
|a J
700 1 _ |0 P:(DE-Juel1)129472
|a Huisman, J. A.
|b 1
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Meier, H.
|b 2
700 1 _ |0 P:(DE-Juel1)VDB72368
|a Weuthen, A.
|b 3
|u FZJ
773 _ _ |0 PERI:(DE-600)2088189-7
|a 10.2136/vzj2008.0138
|g Vol. 8, p. 755 - 761
|p 755 - 761
|q 8<755 - 761
|t Vadose zone journal
|v 8
|x 1539-1663
|y 2009
856 7 _ |u http://dx.doi.org/10.2136/vzj2008.0138
909 C O |o oai:juser.fz-juelich.de:5535
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913 1 _ |0 G:(DE-Juel1)FUEK407
|a DE-HGF
|b Erde und Umwelt
|k P24
|l Terrestrische Umwelt
|v Terrestrische Umwelt
|x 0
914 1 _ |y 2009
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |0 I:(DE-Juel1)VDB793
|d 31.10.2010
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|l Agrosphäre
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981 _ _ |a I:(DE-Juel1)IBG-3-20101118

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