Moschitta, Antonio and Petri, Dario (2004) Wideband Communication System Sensitivity to Quantizaztion Noise. UNSPECIFIED.
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Abstract
The performances of A/D converters are usually characterized in their granular region, by adopting amplitude limited sine-wave testing signals. However, some applications, like digital telecommunication systems, often require the conversion of signals which noticeably differ from sine-waves and may introduce ADC overloading phenomena. In this paper, the A/D conversion of Gaussian distributed signal is investigated, both for PCM and Sigma-Delta converters. Then, the effects of quantization noise upon the behavior of a Digital Communication System are considered. By extending previous results, a model is introduced, which describes the BER performance of an OFDM system also in presence of overloading quantization noise, both for PCM and Sigma-Delta A/D converters.
| Item Type: | Departmental Technical Report |
|---|---|
| Department or Research center: | Information Engineering and Computer Science |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7885 Computer Engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.5 Computer Networks T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Uncontrolled Keywords: | A/D converters, Testing, Direct Digital Modulation, Orthogonal Frequency Division Multiplexing |
| Report Number: | DIT-04-056 |
| Repository staff approval on: | 02 Aug 2004 |
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