Efficient implementation of discrete wavelet multitone in DSL communications

Author

Couturier-Doux, V. ; Lienard, J. ; Conq, B. ; Gallay, P.

Author_Institution

DIH/OCF Lab., Meylan, France

Volume

1

fYear

2003

fDate

2-5 July 2003

Firstpage

393

Abstract

The improvement of DSL technologies has led us to study of new multicarrier modulation techniques such as filtered multitone (FMT) or discrete wavelet multitone (DWMT), as alternatives of discrete multitone (DMT) and carrierless amplitude phase modulation (CAP). We first introduce the basics of the DWMT modulation as a multicarrier evolution with overlapping frames. Then this modulation is detailed and a new fast algorithm presented to perform it. Finally we study the performances of a DWMT transmission scheme in a VDSL environment, with the usual perturbations induced by the wire line as AWGN and radio interferences (RFI).

Keywords

channel bank filters; digital subscriber lines; discrete wavelet transforms; modulation; CMFBs; DSL communications; DSL technologies; VDSL environment; carrierless amplitude phase modulation; discrete multitone; discrete wavelet multitone modulation; discrete wavelet multitone transmission scheme; filtered multitone; multicarrier modulation techniques; twisted pair lines; DSL; Discrete wavelet transforms; Filter bank; Finite impulse response filter; Interference; Laboratories; OFDM modulation; Phase modulation; Spectral shape; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Video/Image Processing and Multimedia Communications, 2003. 4th EURASIP Conference focused on

Print_ISBN

953-184-054-7

Type

conf

DOI

10.1109/VIPMC.2003.1220493

Filename

1220493