Estudo e simulação da modulação OFDM aplicada em redes ópticas de nova geração = : Review and simulation of OFDM modulation applied in next generation optical network

O aumento exponencial no trafego mundial de dados tem imposto inumeros desafios para os sistemas de telecomunicacoes. Ha um compromisso entre o interesse das operadoras de telecomunicacoes, de aumentar a receita liquida, e dos clientes, de aumentar a taxa de transmissao de dados. Com isso, diversas solucoes tem sido discutidas no âmbito das comunicacoes opticas. Uma das propostas estudadas e a aplicacao mais intensa do processamento digital de sinais. Dessa forma, neste trabalho foi estudado e simulado o uso da modulacao OFDM (Orthogonal Frequency Division Multiplexing) nas redes opticas de nova geracao. Tambem foi simulado um modem OFDM em linguagem VHDL (Very High Speed Integrated Circuit Hardware Description Language) sendo esta uma etapa do projeto de novos equipamentos. Como prova de conceito, analisou-se o desempenho de redes opticas por meio do software OptiSystem. De maneira geral, os resultados obtidos foram satisfatorios para demonstrar a viabilidade da modulacao OFDM em redes opticas de nova geracao. Abstract

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