TY - JOUR
T1 - Wideband receiver design in the presence of strong narrowband interference
AU - Wang, Feng
AU - Tian, Zhi
N1 - Funding Information:
Manuscript received February 21, 2008. The associate editor coordinating the review of this letter and approving it for publication was M. Saquib. This work was partly supported by the US NSF Grant No. CCR-0238174. Manuscript received on February 21, 2008. The associate editor coordinating the review of this letter and approving it for publication was M. Saquib.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/7
Y1 - 2008/7
N2 - 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.
AB - 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.
KW - Analog-to-digital converter (ADC)
KW - Dynamic range problem
KW - Frequency domain sampling
KW - Narrowband interference (NBI)
KW - Quantization bit allocation
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U2 - 10.1109/LCOMM.2008.080272
DO - 10.1109/LCOMM.2008.080272
M3 - Article
AN - SCOPUS:49049097098
SN - 1089-7798
VL - 12
SP - 484
EP - 486
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 7
ER -