Arquitecturas de radio cognitiva: una revisión actual
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Universidad Distrital Francisco José de Caldas. Colombia
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En años recientes la tecnología en telecomunicaciones ha evolucionado permitiendo el ofrecimiento de mayores servicios a los usuarios, como es el caso de la telefonía móvil. Sin embargo, debido al aumento de estos servicios, el sector de las telecomunicaciones se ha visto enfrentado a un problema creciente que debe solucionarse, referente a la saturación del espectro. Frente a ello se ha planteado como solución más firme la radio cognitiva que enfoca sus esfuerzos en realizar un uso más eficiente del espectro disponible. Este artículo presenta entonces una descripción del estado del arte sobre arquitecturas de radio cognitiva, las soluciones planteadas y las dimensiones espectrales donde se pueden encontrar oportunidades para la transmisión.
In recent years in telecommunications technology has evolved allowing offering more services to users, such as mobile telephony. However due to the increase of these services, the telecommunications sector has been faced with a growing problem that must be addressed concerning the saturation of the spectrum. Cognitive radio has presented like the best way to solve this problem, focusing their efforts on making more efficient use of the available spectrum. This paper presents then a description of the state of the art on Cognitive radio architectures, the proposed solutions and spectral dimensions where Cognitive Radio can find opportunities for transmission.
In recent years in telecommunications technology has evolved allowing offering more services to users, such as mobile telephony. However due to the increase of these services, the telecommunications sector has been faced with a growing problem that must be addressed concerning the saturation of the spectrum. Cognitive radio has presented like the best way to solve this problem, focusing their efforts on making more efficient use of the available spectrum. This paper presents then a description of the state of the art on Cognitive radio architectures, the proposed solutions and spectral dimensions where Cognitive Radio can find opportunities for transmission.
Palabras clave
Network architecture, cognitive radio, wireless network, telecommunica¬tions., Arquitectura de red, radio cognitiva, redes inalámbricas, telecomunica¬ciones