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Performance of coherent QPSK communications over frequency-slective fading channels for broadband PCS The fading caused by the multipath and the effect of delay spread affect broadband wireless personal communications channels by introducing intersymbol interference which appears when the root-mean-squared (rms) delay spread is significant in comparison to the transmitted symbols durations and results, without equalizing, in an irreducible error probability. In this paper, we show that it is easy to obtain, for given power delay profile models, the variance of the interference components at the output of a QPSK receiver. Using Gaussian approximations, a general form for a “Fading factor” is defined. This approach is applied, in the particular cases of exponential and Maxwell power delay profiles, to analyze the performance of coherent QPSK modulation over frequency selective fading channels. Assia Semmar avril 1997, Canadian Journal of Electrical and Computer Engineering, , Anglais,  Bibtex: @Aucun{, author = {Assia Semmar}, title = {Performance of coherent QPSK communications over frequency-slective fading channels for broadband PCS}, journal = {Canadian Journal of Electrical and Computer Engineering}, year = {1997}, month = {April}, language = {Anglais}, } Dernière modification le lundi 20 décembre 2004 à 14h45 par Assia Semmar |