Title :
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
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;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2003.820067
