Temporal equalisers for ADSL G.DMT

Author

Nougarou, François ; Dahmane, Adel Omar ; Massicotte, Daniel

Author_Institution

Dept. de genie electrique et de genie informatique, Univ. du Quebec a Trois-Rivieres, Que., Canada

Volume

3

fYear

2003

fDate

4-7 May 2003

Firstpage

1687

Abstract

DSL technology cannot handle the distortions of the medium by a total equalisation of the channel. The modulation techniques, such as the CAP and DMT, show their effectiveness for handling this problem. ADSL G.DMT, a popular variant of DSL, is seen to impose DMT. The presentation of functioning of the DMT will clarify its problematic intersymbol interference which leads to the use of an equaliser named TEQ (time domain equaliser) in this technology. In this article, the equalisation methods MMSE, MSSNR, MGSNR, MRB and Min-ISI are comparatively analysed from the point of view of performance characteristics of DSL.

Keywords

channel estimation; digital subscriber lines; equalisers; intersymbol interference; least mean squares methods; modulation; ADSL G.DMT; CAP; DSL technology; MGSNR; MMSE; MRB; MSSNR; Min-ISI; channel equalisation; intersymbol interference; temporal equalisers; time domain equaliser; Amplitude modulation; DSL; Equalizers; Frequency division multiplexing; Interference; Irrigation; OFDM modulation; Performance analysis; Quadrature amplitude modulation; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on

ISSN

0840-7789

Print_ISBN

0-7803-7781-8

Type

conf

DOI

10.1109/CCECE.2003.1226234

Filename

1226234