Path loss comparison in 850 MHz and 1800 MHz frequency bands

Bhupuak, Wiyada; Tooprakai, Siraphop

doi:10.1109/ecticon.2016.7561295

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…En el 2016 se compararon diferentes modelos de propagación utilizando el simulador NS-3 para una red LTE en un terreno caracterizado como suburbano y, además, los categorizaron de acuerdo con la complejidad computacional [10]. El mismo año realizaron una comparación entre los modelos Walfisch-Ikegami, SUI y Ericsson en las bandas de 850 MHz y 1800 MHz [11]. En otras investigaciones determinaron las características de propagación de escenarios urbanos y rurales de Shanghai en once bandas de radiofrecuencia entre los 700 MHz y los 3500 MHz, a través de la comparación de los modelos COST-231 Hata y Okumura-Hata [12].…”

Section: Trabajos Relacionadosunclassified

Comparación de modelos de propagación de ondas de radio de un canal inalámbrico en el área urbana de la ciudad de Barranquilla

Barrios-Ulloa

2021

CESTA

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Tres modelos de propagación empíricos fueron comparados: Cost 231 Hata, Walfisch Ikegami (WI) e Interino de la Universidad de Stanford (SUI); para determinar su efectividad en un entorno urbano. Se hicieron mediciones en la banda de los 1900 MHz en un sector de la ciudad de Barranquilla, Colombia; y la evaluación se hizo mediante comparación de valores de error de predicción y relativo de cada modelo con respecto a las mediciones. Los resultados muestran que el modelo WI presentó el menor error relativo en comparación con el Cost 231 Hata y SUI tipo B. Los niveles altos de error indican que los modelos comparados no representan adecuadamente las mediciones en el escenario considerado.

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Section: Trabajos Relacionadosunclassified

Comparación de modelos de propagación de ondas de radio de un canal inalámbrico en el área urbana de la ciudad de Barranquilla

Barrios-Ulloa

2021

CESTA

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“…In the different cases, the path loss exponent (PLE) took different values. In [53], 1800 MHz and 850 MHz frequency bands were compared. For determining the path loss, multiple models were used, namely SUI, Walfisch-Ikegami (WI), and Ericsson.…”

Section: Introductionmentioning

confidence: 99%

Fingerprinting-Based Indoor Positioning Using Data Fusion of Different Radiocommunication-Based Technologies

2023

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Wireless-radio-communication-based devices are used in more and more places with the spread of Industry 4.0. Localization plays a crucial part in many of these applications. In this paper, a novel radiocommunication-based indoor positioning method is proposed, which applies the fusion of fingerprints extracted with various technologies to improve the overall efficiency. The aim of the research is to apply the differences, which occur due to that different technologies behave differently in an indoor space. The proposed method was validated using training and test data collected in a laboratory. Four different technologies, namely WiFi received signal strength indication (RSSI), ultra-wideband (UWB) RSSI, UWB time of flight (TOF) and RSSI in 433 MHz frequency band and all of their possible combinations, were tested to examine the performance of the proposed method. Three widely used fingerprinting algorithms, the weighted k-nearest neighbor, the random forest, and the artificial neural network were implemented to evaluate their efficiency with the proposed method. The achieved results show that the accuracy of the localization can be improved by combining different technologies. The combination of the two low-cost technologies, i.e., the WiFi and the 433 MHz technology, resulted in an 11% improvement compared to the more accurate technology, i.e., the 433 MHz technology. Combining the UWB module with other technologies results in a less significant improvement since this sensor provides lower error rates, when used alone.

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Path loss comparison in 850 MHz and 1800 MHz frequency bands

Cited by 2 publications

References 4 publications

Comparación de modelos de propagación de ondas de radio de un canal inalámbrico en el área urbana de la ciudad de Barranquilla

Comparación de modelos de propagación de ondas de radio de un canal inalámbrico en el área urbana de la ciudad de Barranquilla

Fingerprinting-Based Indoor Positioning Using Data Fusion of Different Radiocommunication-Based Technologies

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