IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, 2005.
DOI: 10.1109/spawc.2005.1506060
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Detection of non-orthogonal pam signals with spectral overlapping

Abstract: A model for a communication system transmitting two nonorthogonal n-PAM signals with spectral overlapping through an AWGN band-limited channel is established. The system is shown to be equivalent to a discrete time-variant multi-user channel with strong interference among users. A receiver structure based on source separation concepts is proposed. The performance of signal detection in terms of symbol error rate is evaluated using Monte Carlo simulations..

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“…Os sinais demodulados e amostrados no instante mT, d 1 (m) e d 2 (m), podem ser representados pelas seguintes expressões [4]:…”
Section: Modelo Do Sistemaunclassified
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“…Os sinais demodulados e amostrados no instante mT, d 1 (m) e d 2 (m), podem ser representados pelas seguintes expressões [4]:…”
Section: Modelo Do Sistemaunclassified
“…A Figura 8 mostra a curva de desempenho do sistema para os seguintes sistemas de detecção: a-algorítmo de Viterbi, bdetetor proposto em [4], e c-decisor de limiar. V. CONCLUSÕES Foi mostrado que uma extensão do algoritmo de Viterbi é mais uma técnica eficiente a ser aplicada na detecção de dois sinais n-PAM não-ortogonais com superposição espectral.…”
Section: Detecção De Símbolounclassified
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