A multiagent framework for cognitive radio / Radios cognitivos : implemetnação de uma plataforma multiagentes

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

In frequencies lower than 3 GHz, a demand occurs out of the frequency spectrum due to the expansion of the wireless communication network, mainly for outdoor applications. Studies show that, there are great gaps of the frequency spectrum in the bands up to 3 GHz. The allocation model of the frequency spectrum needs reformulatiQn for the use of these gaps. This utilization must come from, the change of a static model to a dynamic one. Cognitive radio and cognitive radio networks rise as a technological option for the use of the new model. We introduce and an innovatory architecture for the implementation of cognitive radios, based on the computational models of: software defined radio, agents and frameworks. A case study, for cognitive radio leveI 2, is introduced for use in licensed TV bands. A new algorithm is developed to detect available channel

ASSUNTO(S)

radio redes neurais (computação) agent s frameworks software defined radio inteligencia artificial frequency allocation model cognitive radio wireless communication sistemas de comunicação sem fio neural networks applications espectro de frequencia

ACESSO AO ARTIGO

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