Propagation Characteristics of A 2.4GHz Wireless Sensor Module with A Pattern Antenna in Forestry and Agriculture Field

This paper describes 2.4 GHz RF peer-to-peer propagation measurements and modeling in forests and a Japonica paddy field. Propagation through vegetation is an important subject for creating a reliable wireless sensor network system. Detailed measurement curves of RSSI (received signal strength indic...

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Bibliographic Details
Published in2019 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) pp. 1 - 3
Main Author Hamasaki, Toshihiko
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2019
Subjects
Antenna measurements
Antennas
communication reliability
Forestry
low power
Mathematical model
modeling
paddy field
propagation
Vegetation
Vegetation mapping
wireless sensor network
Wireless sensor networks
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Summary:This paper describes 2.4 GHz RF peer-to-peer propagation measurements and modeling in forests and a Japonica paddy field. Propagation through vegetation is an important subject for creating a reliable wireless sensor network system. Detailed measurement curves of RSSI (received signal strength indication) against distance indicate the presence of various vegetation types based on the moisture conditions of plants. The SRET (simplified radiative energy transfer-based model fits well depending on leaf density for NLOS (non-line-of-sight) conditions in the forests and the paddy field. In the case of LOS (line-of-sight) conditions of paddy field, a novel model named the "TRPF (two-ray paddy field) model" is proposed in order to express the influence of vegetation for a reflection wave.
DOI:10.1109/RFIT.2019.8929207