ransmitter 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

Filterbank Transceivers Optimizing Information Rate in Block Transmissions over Dispersive Channels / A., Scaglione; Barbarossa, Sergio; G. B., Giannakis. - In: IEEE TRANSACTIONS ON INFORMATION THEORY. - ISSN 0018-9448. - 45:(1999), pp. 1019-1032. [10.1109/18.761338]

Filterbank Transceivers Optimizing Information Rate in Block Transmissions over Dispersive Channels

BARBAROSSA, Sergio;
1999

Abstract

ransmitter 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
1999
filterbanks; digital communications; optimal precoding
01 Pubblicazione su rivista::01a Articolo in rivista
Filterbank Transceivers Optimizing Information Rate in Block Transmissions over Dispersive Channels / A., Scaglione; Barbarossa, Sergio; G. B., Giannakis. - In: IEEE TRANSACTIONS ON INFORMATION THEORY. - ISSN 0018-9448. - 45:(1999), pp. 1019-1032. [10.1109/18.761338]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/17642
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