Minimum mean-squared error impulse response shortening for discrete multitone transceivers

Author

Daly, Donnacha ; Heneghan, Conor ; Fagan, Anthony D.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. Dublin, Ireland

Volume

52

Issue

1

fYear

2004

Firstpage

301

Lastpage

306

Abstract

We reformulate the minimum mean squared error (MMSE) solution for time domain equalization (TEQ) in multitone transceivers. We show that the maximum shortening signal-to-noise ratio (MSSNR) and minimum intersymbol interference (min-ISI) TEQs are particular cases of our new formulation. With good channel estimation, the MMSE-TEQ achieves near-optimal rate performance. Our algorithm is less sensitive to channel estimation errors than other methods.

Keywords

channel estimation; equalisers; intersymbol interference; least mean squares methods; optimisation; transceivers; transient response; MMSE impulse response shortening; channel estimation errors; channel shortener; desired impulse response; discrete multitone transceivers; eigenfilters; intersymbol interference; maximum shortening SNR; minimum ISI; minimum mean squared error; optimization; signal-to-noise ratio; time domain equalization; virtual channel; Adaptive signal processing; Butler matrix; Equalizers; Linear algebra; Notice of Violation; OFDM modulation; Signal processing; Speech processing; Symmetric matrices; Transceivers;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2003.820067

Filename

1254050