Wireless Sensor Network Wave Propagation in Vegetation

Sabri, Naseer; Aljunid, S. A.; Salim, M. S.; Fouad, S.S.; Kamaruddin, R.

doi:10.1007/978-981-287-128-2_18

Cited by 7 publications

(8 citation statements)

References 17 publications

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“…In Ref. [ 27 ], the foliage attenuation model recommended by the International Telecommunication Union (ITU-R), the Modified Exponential Decay model (MED), and Weissberger model were simulated and analyzed to predict the connectivity as well as the maximum coverage of the nodes within the communication path. In Ref.…”

Section: Related Workmentioning

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

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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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Section: Related Workmentioning

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

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“…In the literature, there are several models evaluating the excess attenuation because of the presence of foliage between the transmitter and the receiver. The modified exponential decay (MED) models in dB are defined by the following expression [ 57 ]:

where f is the operating frequency in Hertz, d is the depth of the foliage in meters, A, B, and C are empirical fitting constants that depend on the type of foliage. The Weissberger model is applied to environments where the ray path is blocked by means of a dense, dry, in-leaf trees [ 58 ].…”

Section: Post-processingmentioning

confidence: 99%

A Propagation Study of LoRa P2P Links for IoT Applications: The Case of Near-Surface Measurements over Semitropical Rivers

Gutiérrez-Gómez

Rangel

Edwards

et al. 2021

Sensors

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Internet of Things (IoT) radio networks are becoming popular in several scenarios for short-range applications (e.g., wearables and home security) and medium-range applications (e.g., shipping container tracking and autonomous farming). They have also been proposed for water monitoring in flood warning systems. IoT communications may use long range (LoRa) radios working in the 915 MHz industrial, scientific and medical (ISM) band. In this research, we study the propagation characteristics of LoRa chirp radio signals close to and over water in a tropical meadow region. We use as a case study the Colima River in Mexico. We develop a novel point-to-point IoT measurement sounding system that does not require decoding of LoRa propriety bursts and provides accurate power versus distance profiles along the riparian zone of a steeply dropping mountain river. We used this system to obtain the measurements reported in this work, which are also analyzed and modeled. The results show that the LoRa signal propagation over water exhibits a log-normal distribution. As a result of the chirp signal processing, two new experimental path loss models are presented. The path loss results show a considerable degradation of the received signal power over water within vegetation and less signal degradation at antenna heights closer to the water surface.

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“…They had to spend more money on providing long cables for transferring data to the control rooms that they not only gives an ugly appearance to the greenhouses but also it made problems for movement of the farmer in the greenhouses [11]. Furthermore, the cable was decayed over time and the farmers have to substitute new cables instead of the older cables in the time period [12, 13]. By emerging wireless sensor networks, the drawbacks have been declined over time.…”

Section: Introductionmentioning

confidence: 99%

Developed wireless sensor network to supervise the essential parameters in greenhouses for internet of things applications

Abbasi-Kesbi

Nikfarjam

Nemati

2020

IET Circuits, Devices & Systems

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Wireless Sensor Network Wave Propagation in Vegetation

Cited by 7 publications

References 17 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

A Propagation Study of LoRa P2P Links for IoT Applications: The Case of Near-Surface Measurements over Semitropical Rivers

Developed wireless sensor network to supervise the essential parameters in greenhouses for internet of things applications

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