Transmitter redundancy introduced using filterbank precoders generalizes existing modulations including OFDM, DMT, TDMA, and CDMA schemes encountered with single- and multiuser communications. Sufficient conditions are derived to guarantee that with FIR filterbank precoders FIR channels are equalized perfectly in the absence of noise by FIR zero-forcing equalizer filterbanks, irrespective of the channel zero locations. Multicarrier transmissions through frequency-selective channels can thus be recovered even when deep fades are present. Jointly optimal transmitter-receiver filterbank designs are also developed, based on maximum output SNR and minimum mean-square error criteria under zero-forcing and fixed transmitted power constraints. Analytical performance results are presented for the zero-forcing filterbanks and are compared with mean-square error and ideal designs using simulations
Redundant Filterbank Precoders and Equalizers - Part I: Unification and Optimal Design / A., Scaglione; G. B., Giannakis; Barbarossa, Sergio. - In: IEEE TRANSACTIONS ON SIGNAL PROCESSING. - ISSN 1053-587X. - 47(1999), pp. 1988-2006.
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Titolo: | Redundant Filterbank Precoders and Equalizers - Part I: Unification and Optimal Design |
Autori: | |
Data di pubblicazione: | 1999 |
Rivista: | |
Citazione: | Redundant Filterbank Precoders and Equalizers - Part I: Unification and Optimal Design / A., Scaglione; G. B., Giannakis; Barbarossa, Sergio. - In: IEEE TRANSACTIONS ON SIGNAL PROCESSING. - ISSN 1053-587X. - 47(1999), pp. 1988-2006. |
Handle: | http://hdl.handle.net/11573/17643 |
Appartiene alla tipologia: | 01a Articolo in rivista |