Title :
CDMA system sensitivity to ΣΔ A/D conversion
Author :
Stefani, Fabrizio ; Moschitta, Antonio ; Carbone, Paolo
Author_Institution :
Dipt. di Ingegneria Elettronica e dell´´Informazione, Univ. degli Studi di Perugia, Italy
Abstract :
In this paper, the performance of a code-division multiple-access (CDMA) system using digital frequency conversion is analyzed and modeled. The joint effect of channel noise, sampling jitter, and analog-digital converter (ADC) errors is discussed and modeled assuming uniform converters. Variable resolution memoryless and ΣΔ ADCs are considered, and the sensitivities of the resulting systems to channel noise, sampling jitter, and overloading errors are compared.
Keywords :
code division multiple access; error statistics; sigma-delta modulation; ΣΔ A/D conversion; CDMA system sensitivity; analog-digital converter errors; analogue-digital converters; channel noise; code-division multiple-access system; digital frequency conversion; memoryless ADC; overloading errors; sampling jitter; sensitivity analysis; AWGN; Bit error rate; Distributed control; Distributed decision making; Frequency conversion; Jitter; Multiaccess communication; Quantization; Radio frequency; Sampling methods; Analog–digital (A/D) conversion; bit-error rate (BER); code-division multiple access (CDMA); quantization; sampling;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.851453
