Title :
Effects of bandpass sigma-delta modulation on OFDM signals
Author :
De Mateo García, Juan Carlos ; Armada, Ana García
Author_Institution :
Dept. of Commun. Technol., Univ. Carlos III de Madrid, Spain
fDate :
5/1/1999 12:00:00 AM
Abstract :
This paper presents a behavioural analysis of bandpass OFDM signals sampled and quantized by means of a sigma-delta A/D architecture. It describes the direct effects of sigma-delta modulation on OFDM signals with a variable number of subcarriers by measuring bit-error-rate degradations. Due to the Gaussian characteristic of OFDM signals, the study has been approached from a statistical point of view
Keywords :
Gaussian processes; OFDM modulation; error statistics; quantisation (signal); sigma-delta modulation; signal sampling; Gaussian characteristic; bandpass OFDM signals; bandpass sigma-delta modulation; behavioural analysis; bit-error-rate degradations; quantization; sigma-delta A/D architecture; signal sampling; statistical analysis; subcarriers; Analog-digital conversion; Bandwidth; Baseband; Degradation; Delta-sigma modulation; Field programmable gate arrays; Linearity; OFDM modulation; Signal analysis; Signal design;
Journal_Title :
Consumer Electronics, IEEE Transactions on
