Title :
Per tone echo cancellation for DMT-based systems
Author :
Van Acker, K. ; Moonen, M. ; Pollet, T.
Author_Institution :
ESAT/SISTA, Katholieke Univ., Leuven, Belgium
Abstract :
A new echo canceller for discrete multitone (DMT) systems is presented where each used tone has its own per tone echo canceller (PT-EC) in addition to a per tone equalizer (PT-EQ). This enables us to optimize the signal-to-noise ratio (SNR) for each tone separately by solving a minimum mean square error (MMSE) problem for each tone. Simulation results confirm improved performance over time domain echo cancellation
Keywords :
echo suppression; equalisers; least mean squares methods; modulation; noise; DMT-based systems; DMT-modulation; MMSE; SNR optimization; discrete multitone systems; echo canceller; minimum mean square error; per tone echo cancellation; per tone equalizer; signal-to-noise ratio; simulation results; time domain echo cancellation; Additive noise; DSL; Data communication; Data models; Echo cancellers; Equalizers; Frequency domain analysis; Mean square error methods; OFDM modulation; Signal to noise ratio;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940475
