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Algoritmos para asignación de espectro en redes de radio cognitiva

  • Autores: César Augusto Hernández Suárez, Luis Fernando Pedraza Martínez, Fredy Hernán Martínez Sarmiento
  • Localización: Tecnura: Tecnología y Cultura Afirmando el Conocimiento, ISSN-e 2248-7638, ISSN 0123-921X, Vol. 20, Nº. 48 (Abril - Junio), 2016, págs. 69-88
  • Idioma: español
  • DOI: 10.14483/udistrital.jour.tecnura.2016.2.a05
  • Títulos paralelos:
    • Algorithms for spectrum allocation in cognitive radio networks
  • Enlaces
  • Resumen
    • español

      Contexto: La asignación de espectro en las redes de radio cognitiva es un aspecto clave para reducir la latencia, incrementar la tasa de datos, aumentar el ancho de banda, mejorar la capacidad y cobertura, y optimizar el uso del espectro, garantizando la calidad de servicio necesaria para aplicaciones de tiempo-real y mejor-esfuerzo. Objetivo: Este artículo presenta una revisión sobre los algoritmos de asignación de espectro en redes de radio cognitiva, describiendo los algoritmos de asignación de espectro más relevantes y su clasificación de acuerdo con la literatura actual.Método: El desarrollo de esta revisión se realizó a partir del análisis de publicaciones recientes de corriente principal con sus respectivas citas, tratando de proveer un marco referencial de la literatura actual sobre los algoritmos de asignación de espectro en redes de radio cognitiva.Resultados: Los principales resultados determinan la importancia de una asignación de espectro inteligente, teniendo en cuenta la carga de tráfico, el comportamiento del usuario, los niveles de interferencia, la caracterización del espectro, el tipo de aplicación y la necesidad de múltiples canales de frecuencia.Conclusión: Como conclusión es importante diseñar algoritmos adaptativos que permitan hacer un uso eficiente de las porciones disponibles del espectro licenciado. 

    • English

      Context: Spectrum allocation in cognitive radio networks is a key aspect to reduce latency, increase data rate, increase bandwidth, improve capacity and coverage, and optimize the use of the spectrum, guaranteeing the quality of service required applications and best-effort and real-time.Objective: This paper aims to present a review of the algorithms for spectrum allocation in cognitive radio networks, describing the relevant algorithms for spectrum allocation and its classification according to the current literature.Method: The development of this review was conducted based on the analysis of recent publications of mainstream with their respective appointments, trying to provide a complete reference framework of the current literature on the algorithms for spectrum allocation in cognitive radio networks.Results: The main results determine the importance of smart spectrum allocation, taking into account the traffic load, user behavior, interference levels, spectral characterization, the type of application and the need for multiple frequency channels.Conclusion: In conclusion it is important to design adaptive algorithms to make efficient use of the available portions of the licensed spectrum.

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