Analysis Study of Vegetation Models Based WSN in Greenhouse Environment

RF propagation from point to point in vegetation environments may be attributed to various phenomena, including diffraction, reflection, absorption, or scattering. As a result, the received signal power is attenuated and hence the communication range and data rate will be limited when WSN is deploye...

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Veröffentlicht in:International journal of advancements in computing technology 2015-11, Vol.7 (6), p.58-58
Hauptverfasser: Raheemah, Auda, Salim, M S, Sabri, Naseer, Ehkan, Phaklen, Ahmad, R Badlishah, Kamaruddin, R, Aljunid, S A
Format: Artikel
Sprache:eng
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Zusammenfassung:RF propagation from point to point in vegetation environments may be attributed to various phenomena, including diffraction, reflection, absorption, or scattering. As a result, the received signal power is attenuated and hence the communication range and data rate will be limited when WSN is deployed. There are many empirical models used to prediction by the path loss in vegetation. This paper review the most known theoretical large scale path losses models (free space (FSPL) and Plane earth (PE) models) and the most known vegetation models (Weissberger, ITU-R, FITU-R and COS235 models) using JN1548 wireless sensor network modules. This work illustrates the effects of many factors on the total path losses such as separation distance between transceivers, antenna heights and the parts of vegetation such as foliages, trunks and canopy. This paper presents a comparison between the empirical results of path losses were performed in the greenhouse with the total path losses that predicted by vegetation models combined with FSPL and PE models. This study confirms that the best model that can be used in such environment rather than others is COST235 model because it gives the nearest results to the empirical results.
ISSN:2005-8039
2233-9337