Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios
Wideband spectrum sensing for cognitive radios requires very demanding analog-to-digital conversion (ADC) speed and dynamic range. In this paper, a mixed-signal parallel compressive sensing architecture is developed to realize wideband spectrum sensing for cognitive radios at sub-Nqyuist rates by ex...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2010-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2010/730509 |
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| _version_ | 1841524635373404160 |
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| author | Zhuizhuan Yu Xi Chen Sebastian Hoyos Brian M. Sadler Jingxuan Gong Chengliang Qian |
| author_facet | Zhuizhuan Yu Xi Chen Sebastian Hoyos Brian M. Sadler Jingxuan Gong Chengliang Qian |
| author_sort | Zhuizhuan Yu |
| collection | DOAJ |
| description | Wideband spectrum sensing for cognitive radios
requires very demanding analog-to-digital conversion (ADC)
speed and dynamic range. In this paper, a mixed-signal parallel
compressive sensing architecture is developed to realize wideband
spectrum sensing for cognitive radios at sub-Nqyuist rates by
exploiting the sparsity in current frequency usage. Overlapping
windowed integrators are used for analog basis expansion, that
provides flexible filter nulls for clock leakage spur rejection. A low-speed experimental system, built with off-the-shelf components,
is presented. The impact of circuit nonidealities is considered
in detail, providing insight for a future integrated circuit implementation. |
| format | Article |
| id | doaj-art-732fea22563e448d9a5a592e87347e58 |
| institution | Kabale University |
| issn | 1687-7578 1687-7586 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Digital Multimedia Broadcasting |
| spelling | doaj-art-732fea22563e448d9a5a592e87347e582025-02-03T05:47:42ZengWileyInternational Journal of Digital Multimedia Broadcasting1687-75781687-75862010-01-01201010.1155/2010/730509730509Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive RadiosZhuizhuan Yu0Xi Chen1Sebastian Hoyos2Brian M. Sadler3Jingxuan Gong4Chengliang Qian5Department of Electrical and Computer Engineering, The Analog and Mixed Signal Center (AMSC), Texas A&M University, College Station, TX 77843-3128, USADepartment of Electrical and Computer Engineering, The Analog and Mixed Signal Center (AMSC), Texas A&M University, College Station, TX 77843-3128, USADepartment of Electrical and Computer Engineering, The Analog and Mixed Signal Center (AMSC), Texas A&M University, College Station, TX 77843-3128, USAArmy Research Laboratory, AMSRD-ARL-CI-CN, Adelphi, MD 20783, USADepartment of Electrical and Computer Engineering, The Analog and Mixed Signal Center (AMSC), Texas A&M University, College Station, TX 77843-3128, USADepartment of Electrical and Computer Engineering, The Analog and Mixed Signal Center (AMSC), Texas A&M University, College Station, TX 77843-3128, USAWideband spectrum sensing for cognitive radios requires very demanding analog-to-digital conversion (ADC) speed and dynamic range. In this paper, a mixed-signal parallel compressive sensing architecture is developed to realize wideband spectrum sensing for cognitive radios at sub-Nqyuist rates by exploiting the sparsity in current frequency usage. Overlapping windowed integrators are used for analog basis expansion, that provides flexible filter nulls for clock leakage spur rejection. A low-speed experimental system, built with off-the-shelf components, is presented. The impact of circuit nonidealities is considered in detail, providing insight for a future integrated circuit implementation.http://dx.doi.org/10.1155/2010/730509 |
| spellingShingle | Zhuizhuan Yu Xi Chen Sebastian Hoyos Brian M. Sadler Jingxuan Gong Chengliang Qian Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios International Journal of Digital Multimedia Broadcasting |
| title | Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios |
| title_full | Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios |
| title_fullStr | Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios |
| title_full_unstemmed | Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios |
| title_short | Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios |
| title_sort | mixed signal parallel compressive spectrum sensing for cognitive radios |
| url | http://dx.doi.org/10.1155/2010/730509 |
| work_keys_str_mv | AT zhuizhuanyu mixedsignalparallelcompressivespectrumsensingforcognitiveradios AT xichen mixedsignalparallelcompressivespectrumsensingforcognitiveradios AT sebastianhoyos mixedsignalparallelcompressivespectrumsensingforcognitiveradios AT brianmsadler mixedsignalparallelcompressivespectrumsensingforcognitiveradios AT jingxuangong mixedsignalparallelcompressivespectrumsensingforcognitiveradios AT chengliangqian mixedsignalparallelcompressivespectrumsensingforcognitiveradios |