ADC Precision Requirement for Digital Ultra-Wideband Receivers with Sublinear Front-Ends: A Power and Performance Perspective

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Hardware
Format: PDF
In this paper, the authors present the power and performance analysis of a digital, Direct Sequence Ultra-WideBand (DS-UWB) receiver operating in the 3 to 4GHz band. The Signal to Noise and Distortion Ratio (SNDR) and Bit Error Rate (BER) were evaluated with varying degrees of front-end linearity and Analog to Digital Converter (ADC) accuracy. The analysis and simulation results indicate two or more ADC bits are required for reliable data reception in the presence of strong interference and inter-modulation distortion. In addition to BER performance, power consumption of different hardware configurations is also evaluated to form the cost function for evaluating design choices.
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