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

Volume

2

fYear

1999

fDate

24-27 Oct. 1999

Firstpage

1067

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-5700-0

Type

conf

DOI

10.1109/ACSSC.1999.831873

Filename

831873