Performance Bounds of DPSK and OOK for Low Elevation Optical LEO Downlinks

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dc.contributor.authorHenniger, Hennes
dc.contributor.authorLudwig, Alexandra
dc.contributor.authorHorwath, Joachim
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.abstractOptical wireless LEO downlinks are seen as an emerging solution to increase available bandwidth to multigigabits per second. One of the biggest challenges is the impact of the atmosphere on the optical signal. The atmosphere causes time-varying link degradation due to index of refraction turbulence, especially at low elevation angles. Since the influence of the turbulence for low elevation downlinks is hardly investigated we perform numerical propagation simulations in order to achieve reliable received signal statistics. These results are further utilized to evaluate performance bounds of optical wireless systems from an information theory perspective. We focus on the two most common optical wireless systems, i.e. NRZ-DPSK and NRZ-OOK. This work shows that under low elevation angles acceptable quality of service can only be reached with high code rates.en
dc.formattextcs
dc.format.extent589-595cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2010, vol. 19, č. 4, s. 589-595. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57037
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2010/10_04_589_595.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectFree-space optical communicationsen
dc.subjectchannel capacityen
dc.subjectindex of refraction turbulenceen
dc.subjectfadingen
dc.subjectLEO downlinken
dc.subjectsystem performanceen
dc.titlePerformance Bounds of DPSK and OOK for Low Elevation Optical LEO Downlinksen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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