Adaptive equalizers for lapped multitone systems

Author

Neurohr, Norbert

Author_Institution

Inst. of Commun. Eng., Kaiserslautern Univ., Germany

Volume

2

fYear

1999

fDate

24-27 Oct. 1999

Firstpage

917

Abstract

In this paper adaptive equalizers for lapped multitone systems are investigated. Starting from a unified approach to multicarrier modulation using filter banks, block multitone systems like discrete multitone (DMT) and lapped multitone systems like discrete wavelet multitone (DWMT) are presented Then the structure of the resulting matrix channel is investigated. After that, linear feed forward equalizers and nonlinear decision feedback equalizers for matrix channels are introduced and adapted to the special structure of the channel. This leads to adaptive equalizers for lapped multitone systems with reduced complexity. These algorithms are investigated in a VDSL scenario.

Keywords

OFDM modulation; adaptive equalisers; computational complexity; decision feedback equalisers; digital subscriber lines; discrete wavelet transforms; DMT; DWMT; VDSL scenario; adaptive equalizers; block multitone systems; complexity; discrete multitone systems; discrete wavelet multitone; filter banks; lapped multitone systems; linear feed forward equalizers; matrix channel; multicarrier modulation; nonlinear decision feedback equalizers; Adaptive equalizers; DSL; Digital modulation; Discrete Fourier transforms; Discrete wavelet transforms; Feeds; Filter bank; OFDM modulation; Prototypes; Sparse matrices;

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.1999.831843

Filename

831843