An Efficient Filter Banks Based Multicarrier System in Cognitive Radio Networks (invited paper)

Simple item page
dc.contributor.authorCui, Yun
dc.contributor.authorZhao, Zhifeng
dc.contributor.authorZhang, Honggang
dc.coverage.issue4cs
dc.coverage.volume19cs
dc.date.accessioned2016-03-11T09:20:18Z
dc.date.available2016-03-11T09:20:18Z
dc.date.issued2010-12cs
dc.description.abstractIn cognitive radio techniques, OFDM is usually regarded as the physical layer candidate. However, the weaknesses of the OFDM technique, i.e., using plain FFT for spectral analysis , decreased bandwidth efficiency due to CP (cyclic prefix), high out-of-band emission, have been pointed out and the introduction of filter banks based multicarrier (FBMC) system has been advocated by a number of authors. In this paper, we propose an efficient FBMC system for cognitive radio network. At the transmitter, we propose a decimation transform decomposition method to eliminate the unnecessary zero operations. At the receiver, we utilize the analysis filter banks to sense the spectrum bands. In order to conquer the shortages of the traditional filter banks, we propose a multistage analysis filter banks, which can reduce the computational complexity while improve the detection precision when used to sense the spectrum bands. And with an adaptive threshold scheme in the power estimator, the threshold can be kept very close to the noise power, which can increase the detection probability especially in the condition of low SNR.en
dc.formattextcs
dc.format.extent479-487cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2010, vol. 19, č. 4, s. 479-487. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57023
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2010/10_04_479_487.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectCognitive radioen
dc.subjectFBMCen
dc.subjecttransform decompositionen
dc.subjectmultistage filter banksen
dc.subjectadaptive thresholden
dc.titleAn Efficient Filter Banks Based Multicarrier System in Cognitive Radio Networks (invited paper)en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
10_04_479_487.pdf
Size:
862.94 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
2010/4