Some Comparison between Propagation Models in Cost 2100 Cali Reference Scenario

Cadavid, Andrés Navarro; Ardila, Carlos Andredy; Mateus, Duván Javier Mejía

doi:10.18046/syt.v7i13.1005

Cited by 3 publications

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Statistical adjustment of empirical propagation path loss models to the COST 2100 Cali reference scenario

Cadavid

Ardila

2012

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

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Propagation models used to plan outdoor wireless networks on urban environment, tend to include a high degree of empirical component. These are derived from the difficulties of accurately estimate the influence of obstacles, buildings and terrain in the signal path loss. Therefore, the final equation usually contains constants, and coefficients for the different terms, mainly obtained by statistical analysis of measurement sets, collected during drive tests on large areas of the city. Unfortunately, such results are only truly valid for the city or parts of the city on which the measurements were taken. They can also be considered appropriate for similar areas or cities at the most. If the areas are not similar enough however, a process of adjustment is necessary, leading to the finding of new constants and coefficients. The purpose of this paper is to discuss some of the findings during the process of statistically adjust the Okumura-Hata and Walfisch-Bertoni models to the Cali scenario, using measurements

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Statistical adjustment of empirical propagation path loss models to the COST 2100 Cali reference scenario

Cadavid

Ardila

2012

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

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Blockage Effects of Road Bridge on mmWave Channels for Intelligent Autonomous Vehicles

Yan

Guan

et al. 2024

IEEE Trans. Intell. Transport. Syst.

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Ajuste estadístico de modelos de propagación de señal usando medidas de la ciudad de Cali

Cadavid¹,

Ardila²

2012

Ingenium

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Grupo de investigación i2t, Universidad Icesi, Cali -Colombia ResumenLa dificultad de estimar con exactitud la influencia de los obstáculos, los edificios y el terreno en la pérdida de trayectoria de la señal hace que los modelos de propagación, generalmente utilizados para la planificación de redes inalámbricas externas, en entornos urbanos incluyan algunos elementos empíricos. Por lo tanto, la ecuación final generalmente contiene constantes y coeficientes para los diferentes términos, que se obtienen principalmente a partir del análisis estadístico de mediciones recolectadas durante actividades de drive test en grandes áreas de la ciudad. Desafortunadamente, estos resultados son realmente válidos únicamente para las áreas de la ciudad en las que se obtuvieron y, en el mejor de los casos, para áreas o ciudades similares. Sin embargo, si el nivel de similitud no es suficiente, es necesario realizar ajustes, un proceso que resulta en la formulación de nuevas constantes y nuevos coeficientes. El propósito de este artículo es discutir algunos de los hallazgos obtenidos durante el proceso de ajuste estadístico al escenario de la ciudad de Cali, de los modelos Okumura-Hata, Stanford University Interim (SUI) y Walfisch-Bertoni, usando mediciones. Palabras claveRadiocomunicaciones; modelos de propagación; calidad /confiabilidad de la comunicación; ajuste de modelos; escenario de referencia. AbstractPropagation models normally used to plan outdoor wireless networks on urban environment, tend to include a number of empirical elements. These are derived from the difficulties of accurately estimate the influence of obstacles, buildings and terrain in the signal path loss. Therefore, the final equation usually contains constants, and coefficients for the different terms, mainly obtained by statistical analysis of measurement sets, collected during drive tests on large areas of the city. Unfortunately, such results are only truly valid for the city or parts of the city on which the measurements were taken. They may also be considered appropriate for similar areas or cities at the most. If the areas are not similar enough however, adjustments are necessary, resulting in the formulation of new constants and coefficients. The purpose of this paper is to discuss some of the findings during the process of statistically adjust the Okumura-Hata, Stanford University Interim (SUI) and Walfisch-Bertoni models to the Cali scenario, using measurements.

show abstract

Some Comparison between Propagation Models in Cost 2100 Cali Reference Scenario

Cited by 3 publications

References 1 publication

Statistical adjustment of empirical propagation path loss models to the COST 2100 Cali reference scenario

Statistical adjustment of empirical propagation path loss models to the COST 2100 Cali reference scenario

Blockage Effects of Road Bridge on mmWave Channels for Intelligent Autonomous Vehicles

Ajuste estadístico de modelos de propagación de señal usando medidas de la ciudad de Cali

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