Thesis ANÁLISIS Y MODELADO DE FLUCTUACIONES DE LARGO PLAZO EN ENLACES INALÁMBRICOS FIJOS A 5.8 GHZ
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Date
2016
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Abstract
En esta tesis se analiza y modela la dinámica de largo plazo de enlaces inalámbricos fijos de banda angosta en
la banda de 5.8 GHz. Este trabajo se basa en muestras de potencia capturadas sobre periodos ininterrumpidos
de medición de 48 hrs bajo ambientes urbanos residenciales en Valparaíso y Viña del Mar, Chile.
Los resultados expuestos en este trabajo pretenden responder preguntas sobre la existencia, caracterización y
mitigación de los desvanecimientos temporales lentos, que a la fecha solo han sido caracterizados en escalas
de unos minutos. El trabajo incluye la formulación de un modelo estadístico para caracterizar los
desvanecimientos lentos y la evaluación de técnicas de diversidad en espacio y en frecuencia para su
mitigación.
Los resultados constituyen un aspecto relevante para la planificación de las redes de tipo celular que incluyen
enlaces fijos en la interconexión de relevadores, como la usada en esquemas de femto-celdas para acceder a la
red y dar acceso a un gran número de usuarios en áreas densamente pobladas.
carrier frequency of 5.8 GHz is presented. This work is based on an extensive set of captured received power samples over uninterrupted periods of 48 hours in residential urban environments in Valparaíso and Viña del Mar, Chile. The results here presented were aimed at determining the existence, characterization and mitigation of longterm fades which to date have only been described for time-scales of a few minutes. This work includes the formulation of a statistical model to characterize the slow fading and the use of space and frequency diversity is tested for its mitigation. The characterization of FW channels is important when predicting the quality of service of stationary terminals, such as the experienced by femtocells that use a wireless backhaul to meet the demand for highspeed data services by a large number of users in dense urban areas.
carrier frequency of 5.8 GHz is presented. This work is based on an extensive set of captured received power samples over uninterrupted periods of 48 hours in residential urban environments in Valparaíso and Viña del Mar, Chile. The results here presented were aimed at determining the existence, characterization and mitigation of longterm fades which to date have only been described for time-scales of a few minutes. This work includes the formulation of a statistical model to characterize the slow fading and the use of space and frequency diversity is tested for its mitigation. The characterization of FW channels is important when predicting the quality of service of stationary terminals, such as the experienced by femtocells that use a wireless backhaul to meet the demand for highspeed data services by a large number of users in dense urban areas.
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Catalogado desde la version PDF de la tesis.
Keywords
ENLACE INALAMBRICO FIJO, MODELO, PROPAGACION
Citation
Campus
Universidad Técnica Federico Santa María UTFSM. Casa Central Valparaíso