Compressive Sensing with Optimal Sparsifying Basis and Applications in Spectrum Sensing
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| dc.contributor.author |
Vlah, Dario |
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| dc.contributor.author |
Kung, H.T. T.
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| dc.contributor.author |
Gwon, Youngjune Lee
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| dc.date.accessioned |
2012-12-06T15:03:08Z |
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| dc.date.issued |
2012 |
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| dc.identifier.citation |
Gwon, Youngjune, H.T. Kung, and Dario Vlah. 2012. Compressive sensing with optimal sparsifying basis and applications in spectrum sensing. Paper presented at IEEE 2012 Global Telecommunications Conference (GLOBECOM 2012), Annaheim, CA, December 3-7, 2012. |
en_US |
| dc.identifier.uri |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:10000991 |
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| dc.description.abstract |
We describe a method of integrating Karhunen-Loève Transform (KLT) into compressive sensing, which can as a result improve the compression ratio without affecting the accuracy of decoding. We present two complementary results: 1) by using KLT to find an optimal basis for decoding we can drastically reduce the number of measurements for compressive sensing used in applications such as radio spectrum analysis; 2) by using compressive sensing we can estimate and recover the KLT basis from compressive measurements of an input signal. In particular, we propose CS-KLT, an online estimation algorithm to cope with nonstationarity of wireless channels in reality. We validate our results with empirical data collected from a wideband UHF spectrum and eld experiments to detect multiple radio transmitters, using software-defined radios. |
en_US |
| dc.description.sponsorship |
Engineering and Applied Sciences |
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| dc.language.iso |
en_US |
en_US |
| dc.publisher |
Institute of Electrical and Electronics Engineers |
en_US |
| dc.relation.hasversion |
http://www.eecs.harvard.edu/~htk/publication/2012-globecom-gwon-kung-vlah.pdf |
en_US |
| dash.license |
LAA |
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| dc.title |
Compressive Sensing with Optimal Sparsifying Basis and Applications in Spectrum Sensing |
en_US |
| dc.type |
Conference Paper |
en_US |
| dc.description.version |
Author's Original |
en_US |
| dash.depositing.author |
Kung, H.T. T.
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| dc.date.available |
2012-12-06T15:03:08Z |
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FAS Scholarly Articles [5133]
Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
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