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Simulação de sistemas de comunicação LTE Long-Term Evolution
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ISBN10: 6208366496
ISBN13: 9786208366490
Publisher: Edicoes Nosso Conhecimento
Published: Dec 10 2024
Pages: 64
Weight: 0.23
Height: 0.15 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208366490
Publisher: Edicoes Nosso Conhecimento
Published: Dec 10 2024
Pages: 64
Weight: 0.23
Height: 0.15 Width: 6.00 Depth: 9.00
Language: Portuguese
Têm sido efectuadas investigações sobre o desenvolvimento de algoritmos de processamento de sinais para a evolução a longo prazo (LTE), o que exige um ambiente de simulação realista, flexÃvel e compatÃvel com as normas. Para facilitar as comparações com o trabalho de outros grupos de investigação, esse ambiente de simulação deve, idealmente, estar disponÃvel ao público. A LTE é a evolução do UMTS que permitirá fornecer serviços multimédia de alta qualidade da próxima geração de acordo com as expectativas dos utilizadores. Uma vez que a avaliação do desempenho do LTE necessita de simulações ao nÃvel da ligação e do sistema, é apresentada neste livro uma ferramenta de software para simular a ligação descendente LTE baseada na tecnologia OFDM com processamento de antena MIMO. Este simulador contém os algoritmos MIMO, os modelos de canal espacial e os esquemas de modulação e codificação para LTE. O resultado deste simulador serve para avaliar o desempenho ao nÃvel da ligação OFDM-MIMO LTE em diferentes ambientes e criar tabelas de consulta ao nÃvel da ligação para serem utilizadas como entrada para um futuro simulador ao nÃvel do sistema LTE. Tudo isto, juntamente com outras discussões, permite ao leitor ter uma imagem clara da camada fÃsica LTE e da técnica utilizada no sistema de comunicação LTE.
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