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

Abstract

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.

Analysis of Vegetation and Penetration Losses in 5G mmWave Communication Systems

“…This model is applicable only when the transmission path is LOS, otherwise it can not be applied. This model have 2 values for each of the three components, depending on the depth of foliage around the path [12]. When calculating using the formula presented below it can be seen that the results are very similar, and due to that only one curve will be represented on the graph.…”

Unveiling the Impact: Human Exposure to Non-Ionizing Radiation in the Millimeter-Wave Band of Sixth-Generation Wireless Networks

“…The Weissberger model has been used in this work to define the signal propagation through vegetation in mmWave networks [52]. The Weissberger foliage loss is described by the following:…”