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 language | English (US) |
|---|---|
| Pages (from-to) | 484-486 |
| Number of pages | 3 |
| Journal | IEEE Communications Letters |
| Volume | 12 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2008 |
| Externally published | Yes |
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Keywords
- Analog-to-digital converter (ADC)
- Dynamic range problem
- Frequency domain sampling
- Narrowband interference (NBI)
- Quantization bit allocation
ASJC Scopus subject areas
- Computer Networks and Communications
Cite this
Wideband receiver design in the presence of strong narrowband interference. / Wang, Feng; Tian, Zhi.
In: IEEE Communications Letters, Vol. 12, No. 7, 07.2008, p. 484-486.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Wideband receiver design in the presence of strong narrowband interference
AU - Wang, Feng
AU - Tian, Zhi
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
UR - http://www.scopus.com/inward/record.url?scp=49049097098&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=49049097098&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2008.080272
DO - 10.1109/LCOMM.2008.080272
M3 - Article
AN - SCOPUS:49049097098
VL - 12
SP - 484
EP - 486
JO - IEEE Communications Letters
JF - IEEE Communications Letters
SN - 1089-7798
IS - 7
ER -