Controlling clipping probability in DMT transmission

Author

Gatherer, Alan ; Polley, M.

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

Volume

1

fYear

1997

fDate

2-5 Nov. 1997

Firstpage

578

Abstract

A discrete multitone signal has a much higher peak to average ratio than a comparable single tone modulation signal. Therefore a DMT transmitter has to either have a significantly more expensive analog front end (both in terms of the DAC, the analog filter and line driver) or it has to control the amount of clipping. We describe two general techniques for clipping control and present performance comparisons to previous techniques.

Keywords

parameter estimation; probability; quadrature amplitude modulation; signal processing; subscriber loops; ADSL; COFDM; DAC; DMT transmission; Fourier projection algorithm; QAM signals; analog filter; analog front end; asymmetric digital subscriber line; clipping probability control; discrete multitone signal; line driver; parameter estimation; peak to average ratio; performance; projection onto convex sets; single tone modulation signal; Decoding; Frequency; Instruments; Noise cancellation; Noise shaping; OFDM modulation; Peak to average power ratio; Signal processing algorithms; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-8316-3

Type

conf

DOI

10.1109/ACSSC.1997.680443

Filename

680443