Redundant filterbank precoders and equalizers-part I: Unification and optimal designs

Anna Scaglione, Georgios B. Giannakis, Sergio Barbarossa

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Transmitter redundancy introduced using fllterbank 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 fllterbank precoders, FIR channels are equalized perfectly in the absence of noise by FIR zero-forcing equalizer fllterbanks, irrespective of the channel zero locations. Multicarrier transmissions through frequencyselective channels can thus be recovered, even when deep fades are present. Jointly optimal transmitter-receiver fllterbank designs are also developed based on maximum-output signal-to-noise ratio (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.

Original languageEnglish (US)
Pages (from-to)820-821
Number of pages2
JournalIEEE Transactions on Signal Processing
Volume46
Issue number3
StatePublished - Dec 1 1998

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