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Tecnología en Marcha
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Tecnología en Marcha
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Tecnología de Modulación en el Espacio de Tiempo-Frecuencia Ortogonal

Authors: Castillo Rodríguez, Rodrigo Alberto;

Tecnología de Modulación en el Espacio de Tiempo-Frecuencia Ortogonal

Abstract

La presente investigación bibliográfica recopila los conceptos básicos de la tecnología de modulación en el Espacio de Tiempo-Frecuencia Ortogonal (OTFS), que será utilizada para la comunicación móvil de quinta generación (5G), la cual presenta ventajas inherentes frente a la modulación de Multiplexación por División de Frecuencia Ortogonal (OFDM) utilizada en la comunicación móvil de cuarta generación (4G). Entre ellas podemos destacar su capacidad de transformar un canal que se desvanece aleatoriamente dentro del espacio de tiempo-frecuencia en un canal estacionario, no aleatorio y sin desvanecimiento, entre el transmisor y el receptor. Además, el hecho de que la modulación OTFS opere en dominios en los que el canal puede caracterizarse en una forma muy compacta tiene implicaciones significativas para la solución de los cuellos de botella de estimación de canales, que afectan los sistemas actuales de antenas múltiples, y puede ser una tecnología clave para abordar problemas similares en futuros sistemas masivos de múltiples entradas y múltiples salidas (MIMO). Finalmente, el beneficio clave de la modulación OTFS es su capacidad para operar fácilmente en canales Doppler extremos; esto no solo es útil en las comunicaciones de alta movilidad, sino que también puede ser una tecnología que habilite los sistemas en la banda de frecuencia de onda milimétrica significativamente, para su operatividad en condiciones donde los efectos Doppler se amplifican.

Country
Costa Rica
Keywords

Ondas milimétricas, Modulation, Technology, mmWave, T, efecto Doppler, Doppler Effect, Modulación, OTFS, Doppler effect, efecto doppler, Efecto Doppler, ondas milimétricas, otfs, modulación

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold