Generalização do decodificador multiestagio : proposição e analise de desempenho

AUTOR(ES)
DATA DE PUBLICAÇÃO

1992

RESUMO

In this thesis we propose a multistage decoding strategy from which the Imai-Hirakawa scheme is a particular case. The optimum multistage decoder in this class is obtained by the optimization of the estimator costs associated with each stage in the decoding process. We also provide a general procedure to derive an upper-bound on the bit error probability, which takes into account wrong side information effects, both for the 2T -PSK and for the 4T -QAM signal constellations. Finally, a comparison with both Imai-Hirakawa and Kofman et. al, multistage decoders is presented where we show that the proposed decoding strategy outperforms the previous ones

ASSUNTO(S)

telecomunicações comunicações digitais engenharia eletrica

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