학술논문
Efficient implementation of discrete wavelet multitone in DSL communications
Document Type
Conference
Author
Source
Proceedings EC-VIP-MC 2003. 4th EURASIP Conference focused on Video/Image Processing and Multimedia Communications (IEEE Cat. No.03EX667) Video/image processing and multimedia communications Video/Image Processing and Multimedia Communications, 2003. 4th EURASIP Conference focused on. 1:393-398 vol.1 2003
Subject
Language
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).