DocumentCode
1011180
Title
Bitrate-maximizing time-domain equalizer design for DMT-based systems
Author
Vanbleu, Koen ; Ysebaert, Geert ; Cuypers, Gert ; Moonen, Marc ; Van Acker, Katleen
Author_Institution
Katholieke Univ. Leuven-ESAT/SCD, Leuven-Heverlee, Belgium
Volume
52
Issue
6
fYear
2004
fDate
6/1/2004 12:00:00 AM
Firstpage
871
Lastpage
876
Abstract
A time-domain equalizer (TEQ) is inserted in discrete multitone (DMT) receivers to impose channel shortening. Many algorithms have been developed to initialize this TEQ, but none of them really optimizes the bitrate. We present a truly bitrate-maximizing TEQ (BM-TEQ) cost function that is based on an exact formulation of the subchannel signal-to-noise ratio as a function of the TEQ taps. The performance of this BM-TEQ comes close to the performance of the per-tone equalizer.
Keywords
digital subscriber lines; equalisers; modulation; optimisation; telecommunication channels; time-domain analysis; DMT-based systems; SNR; bitrate maximizing cost function; channel shortening; discrete multitone receivers; subchannel signal-to-noise ratio; time-domain equalizer design; Bit rate; DSL; Demodulation; Discrete Fourier transforms; Equalizers; Finite impulse response filter; Intersymbol interference; OFDM modulation; Signal to noise ratio; Time domain analysis;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2004.829564
Filename
1306609
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