Combined channel estimation and data detection using softstatistics for frequency-selective fast-fading digital links |
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Authors: | Baccarelli E. Cusani R. |
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Affiliation: | INFOCOM Dept., Rome Univ.; |
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Abstract: | A novel adaptive nonlinear equalizer for fast time-varying multipath channels that combines the channel estimation and data detection tasks is presented. The a posteriori probabilities (APPs) of the states of the intersymbol interference (ISI) channel are recursively computed from the received data by a symbol-by-symbol (SbS) detector and are then employed by a Kalman-type nonlinear channel estimator. Robust channel tracking and good data-detection performance are obtained, with a reasonable receiver complexity |
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