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Ortogonalidad y capacidad en sistemas MIMO masivo

Authors: Romero Ibáñez, Irene;

Ortogonalidad y capacidad en sistemas MIMO masivo

Abstract

La tecnología MIMO constituye un antes y un después en los sistemas de comunicaciones inalámbricas. Esta tecnología ofrece multitud de beneficios que nos acercan a cumplir con los desafíos impuestos por las limitaciones en un canal inalámbrico así como por las restricciones de nuestros recursos o el espacio físico ocupado por las antenas, entre otros. Además de explotar tanto la dimensión temporal como la frecuencial en sistemas inalámbricos convencionales con una única antena, las posibilidades que ofrece MIMO son realizables también explotando la dimensión espacial que nos proporciona la colocación de múltiples antenas en el transmisor y receptor. Básicamente, cuanto mayor es el número de antenas en el transmisor o receptor, mayor es el número de grados de libertad que nos puede proporcionar el modelo de propagación y mayores serían las prestaciones en términos de velocidad o fiabilidad del enlace. En conclusión, la demanda de velocidades más altas no deja de crecer en la actualidad. En muchas circunstancias, los sistemas inalámbricos son una efectiva solución, proporcionando altas velocidades a un menor coste que las tecnologías basadas en cables como xDSL. Las limitaciones en ancho de banda y en potencia en los sistemas de comunicaciones actuales hacen que la tecnología MIMO sea indispensable en estos momentos.

Country
Spain
Related Organizations
Keywords

Telecomunicaciones, Comunicaciones inalámbricas, Tecnología MIMO

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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!
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