Abstract
We consider a compressive wide-band spectrum sensing scheme for cognitive radio networks. Each cognitive radio (CR) sensing receiver transforms the received analog signal from the licensed system in to a digital signal using an analog-toinformation converter. The autocorrelation of the compressed signal is then collected from each CR at a fusion center. A compressive sampling recovery algorithm that exploits joint sparsity is then employed to reconstruct an estimate of the signal spectrum and used to make a decision on signal occupancy. We compare the performance of this distributed compressive spectrum sensing scheme with a compressive spectrum sensing scheme at a single CR and show the performance gains obtained from spatial diversity.
Original language | English |
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Title of host publication | Information Theory and Applications Workshop, ITA 2009 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 178-183 |
Number of pages | 6 |
ISBN (Print) | 9781424439904 |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
Event | Information Theory and Applications Workshop, ITA 2009 - San Diego, CA, United States Duration: 8 Feb 2009 → 13 Feb 2009 |
Conference
Conference | Information Theory and Applications Workshop, ITA 2009 |
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Country/Territory | United States |
City | San Diego, CA |
Period | 8/02/09 → 13/02/09 |
Keywords
- Cognitive radio
- Distributed compressive sampling
- Spectrum estimation
- Wide-band spectrum sensing