Wideband receiver design in the presence of strong narrowband interference

Feng Wang, Zhi Tian

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

In the presence of narrowband interference (NBI), detection of weak wideband signals faces foremost challenges in analog-to-digital conversion (ADC), due to the dynamic range problem encountered when the weak signal cannot be amplified adequately to achieve sufficient quantization accuracy. Building on a parallel frequency-domain sampling structure for ADCs, this letter derives a new quantization bit allocation scheme that effectively removes strong NBI. Frequency bins hosting NBIs are allocated with no quantization bits. Optimal rules for symbol detection and quantization bit allocation are derived by jointly minimizing the mean square error of the decoding output.

Original languageEnglish (US)
Pages (from-to)484-486
Number of pages3
JournalIEEE Communications Letters
Volume12
Issue number7
DOIs
StatePublished - Jul 1 2008
Externally publishedYes

Keywords

  • Analog-to-digital converter (ADC)
  • Dynamic range problem
  • Frequency domain sampling
  • Narrowband interference (NBI)
  • Quantization bit allocation

ASJC Scopus subject areas

  • Modeling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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