Title :
SNR and spectral properties for a clipped DMT ADSL signal
Author :
Gross, Richard ; Veeneman, Dale
Author_Institution :
Aware Inc., Cambridge, MA, USA
Abstract :
An accurate model developed to analyze the effects of clipping for a Gaussian signal with an arbitrary spectrum is presented. The model provides information on the reduction of the signal level, the total noise power due to clipping and the spectral properties of the noise. The method is applied to a discrete multitone (DMT) transmission system with parameters that are applicable for the asymmetric digital subscriber line (ADSL) technology. System calculations given to illustrate this approach show a 5 dB improvement in the signal-to-noise (SNR) ratio compared to previous work using an approximate analysis
Keywords :
Gaussian processes; modulation; noise; spectral analysis; subscriber loops; Gaussian signal; SNR; accurate model; asymmetric digital subscriber line; clipped DMT ADSL signal; discrete multitone transmission system; modulation; noise; signal level reduction; signal-to-noise ratio; spectral properties; total noise power; twisted pair copper wires; Noise level; Noise reduction; Nonlinear distortion; OFDM modulation; Optical fibers; Optical noise; Optical transmitters; Power system modeling; Signal analysis; Signal to noise ratio;
Conference_Titel :
Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-1825-0
DOI :
10.1109/ICC.1994.368978
