A model to estimate the path loss in areas with foliage of trees

Azevedo, Joaquim Amândio Rodrigues; Santos, Filipe Edgar

doi:10.1016/j.aeue.2016.10.018

Cited by 18 publications

(20 citation statements)

References 15 publications

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“…In Refs. [ 12 , 18 , 42 , 43 , 44 ], the ITU-R estimates were compared with the results obtained when developing new models to calculate the effectiveness of the models.…”

Section: Technical Analysismentioning

confidence: 99%

“…For example, in Refs. [ 18 , 43 , 44 , 56 , 60 , 61 ] empirical models were proposed based on the estimation of signal power losses in each of the scenarios considered in the respective papers. As documented in the widely known models, deterministic proposals are not commonly used; however, some developments are also presented in Refs.…”

Section: Technical Analysismentioning

confidence: 99%

See 1 more Smart Citation

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review

Barrios-Ulloa

Ariza-Colpas

Sánchez-Moreno

et al. 2022

Sensors

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The use of wireless sensor networks (WSN) for monitoring variables in agricultural environments and natural forests has been increasing in recent years. However, the sizing of these systems is affected by the inaccuracy of the radio wave propagation models used, leading to possible increased costs and measurement errors. This systematic literature review (SLR) aims to identify propagation models widely used in WSN deployments in agricultural or naturally vegetated environments and their effectiveness in estimating signal losses. We also identified today’s wireless technologies most used in precision agriculture (PA) system implementations. In addition, the results of studies focused on the development of new propagation models for different environments are evaluated. Scientific and technical analysis is presented based on articles consulted in different specialized databases, which were selected according to different combinations of criteria. The results show that, in most of the application cases, vegetative models present high error values when estimating attenuation.

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“…In Refs. [ 12 , 18 , 42 , 43 , 44 ], the ITU-R estimates were compared with the results obtained when developing new models to calculate the effectiveness of the models.…”

Section: Technical Analysismentioning

confidence: 99%

Section: Technical Analysismentioning

confidence: 99%

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review

Barrios-Ulloa

Ariza-Colpas

Sánchez-Moreno

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…While the reference loss also increases with the placement of the mobile antenna inside the vehicle. To find the foliage density of the tree canopy, authors in Azevedo and Santos (2017) used a background light shadowed by the tree canopy. They included the number of trees per square meter, the average canopy diameter as the signal influencing factor.…”

Section: Forest Attenuation Modelsmentioning

confidence: 99%

Loss Exponent Modeling for the Hilly Forested Region in the VHF Band III

Jawhly

Tiwari

2021

Radio Science

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“…When a wireless signal propagates through an area covered with vegetation the total propagation loss, ( ) can be obtained as [15,16,17,18,19];…”

Section: The Weissberger-based Propagation Loss For An Area Covered Wmentioning

confidence: 99%

“…Determination of the received signal strength at any location within the arboretum can be done using some foliage propagation loss models [12,13,14]. In this paper, the Weissberger and the Early ITU foliage propagation loss models are used to characterize the propagation loss within an arboretum that consists of mainly Gliricidia sepium trees [15,16,17,18,19]. The arboretum is located within the annex campus of University of Uyo in Akwa Ibom state, Nigeria.…”

Section: Introductionmentioning

confidence: 99%

Application of Weissberger Model for Characterizing the Propagation Loss in a Gliricidia sepium Arboretum

Ozuomba¹,

Johnson²,

Udoiwod³

2018

ujcn

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In this paper, the Weissberger and the Early ITU propagation loss models were used to characterize the propagation loss for a 3G cellular network. Particularly, the 3G network operates at a frequency of 1800 GHz and the case study site is a Gliricidia sepium arboretum which is a Gliricidia sepium Tree Park planted and maintained mainly for scientific study in the annex campus of University of Uyo. Cellmapper app installed on Tecno i5 mobile phone was used to capture the received signal strength; the latitude and longitude of the data capture points, as well as the time and the key cellular network base station data. The relevant mathematical models used to process the measured data and for tuning the Weissberger and the Early ITU propagation loss models were also presented. The Weissberger and the Early ITU propagation loss models were tuned using foliage depth tuning constant. The tuned models prediction performances were evaluated using cross-validation dataset. With the training dataset, the un-tuned Weissberger model had a root mean square (RMSE) value of 21.098 dB while the tuned Weissberger model had a RMSE of 3.375 dB. Similarly, with the training dataset, the un-tuned Early ITU model had a RMSE of 21.970dB while the tuned Early ITU model had a RMSE of 4.019dB. The tuned Weissberger model with the lowest RMSE was adopted for the prediction of the propagation loss in the case study Gliricidia sepium arboretum. Furthermore, the Weissberger model was evaluated using the cross-validation dataset and it had RMSE of 4.507dB.

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A model to estimate the path loss in areas with foliage of trees

Cited by 18 publications

References 15 publications

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review

Loss Exponent Modeling for the Hilly Forested Region in the VHF Band III

Application of Weissberger Model for Characterizing the Propagation Loss in a Gliricidia sepium Arboretum

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