OFDM Signal Detector Based on Cyclic Autocorrelation Function and its Properties

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dc.contributor.authorSebesta, Vladimir
dc.contributor.authorMarsalek, Roman
dc.contributor.authorFedra, Zbynek
dc.coverage.issue4cs
dc.coverage.volume20cs
dc.date.accessioned2016-03-01T09:16:16Z
dc.date.available2016-03-01T09:16:16Z
dc.date.issued2011-12cs
dc.description.abstractThis paper is devoted to research of the general and particular properties of the OFDM signal detector based on the cyclic autocorrelation function. The cyclic autocorrelation function is estimated using DFT. The parameters of the testing signal have been chosen according to 802.11g WLAN. Some properties are described analytically; all events are examined via computer simulations. It is shown that the detector is able to detect an OFDM signal in the case of multipath propagation, inexact frequency synchronization and without time synchronization. The sensitivity of the detector could be decreased in the above cases. An important condition for proper value of the detector sampling interval was derived. Three types of the channels were studied and compared. Detection threshold SNR=-9 dB was found for the signal under consideration and for two-way propagation.en
dc.formattextcs
dc.format.extent926-931cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2011, vol. 20, č. 4, s. 926-931. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/56932
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2011/11_04_926_931.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectSpectrum sensingen
dc.subjectcyclic autocorrelation functionen
dc.subjectOFDMen
dc.subjectfading channelen
dc.subjectfrequency offseten
dc.titleOFDM Signal Detector Based on Cyclic Autocorrelation Function and its Propertiesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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