Wideband Communication System Sensitivity to Quantizaztion Noise

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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