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The detrimental effect of quantization, i.e., the process of reducing the number of bits representing a signal, is a common conception in digital signal processing. In this paper, the authors show that signal quantization can actually have a constructive, rather than destructive, role in improving the end-to-end error performance of a transmission system. To this end, a Direct-Sequence Spread-Spectrum Code-Division Multiple-Access (DS/SS-CDMA) system is examined. The Bit-Error Rate (BER) performance loss due to quantization performed on the baseband analog signal at the input of a conventional CDMA demodulator (i.e., matched filter) was thoroughly investigated in several contributions.
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