Title :
Frequency domain equalization with tone grouping in DMT/ADSL-receivers
Author :
Van Acker, Katleen ; Leus, Geert ; Moonen, Marc ; Pollet, Thieny
Author_Institution :
ESAT, Katholieke Univ., Leuven, Heverlee, Belgium
Abstract :
Per tone equalization for DMT-receivers has been proposed as an alternative structure for time domain equalization combined with 1-tap frequency domain equalization. With comparable complexity during data transmission, higher capacity is obtained. In this paper the influence of grouping tones is studied. For each group, the optimal-per tone equalizer is computed only for the center tone and then reused for the whole group. For a practical example, it is shown that combining tones into groups of 11 tones does not reduce the capacity significantly while this means a significant complexity saving during modem initialization.
Keywords :
channel capacity; computational complexity; data communication; digital subscriber lines; equalisers; frequency-domain analysis; modulation; receivers; 1-tap frequency domain equalization; DMT/ADSL-receivers; asymmetric digital subscriber line; capacity; center tone; complexity; complexity saving; data transmission; discrete multitone; frequency domain equalization; grouping tones; modem initialization; modulation; optimal-per tone equalizer; per tone equalization; time domain equalization; tone grouping; twisted pair copper wires; Bandwidth; Copper; DSL; Equalizers; Frequency domain analysis; Intelligent networks; Interference; Modems; OFDM modulation; Wires;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.831873
