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dc.contributor.authorAghajanzadeh, S. M.
dc.contributor.authorUysal, Murat
dc.date.accessioned2012-06-05T07:58:10Z
dc.date.available2012-06-05T07:58:10Z
dc.date.issued2011
dc.identifier.issn0090-6778
dc.identifier.urihttp://hdl.handle.net/10679/203
dc.identifier.urihttp://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5771502
dc.descriptionDue to copyright restrictions, the access to the full text of this article is only available via subscription.en_US
dc.description.abstractIn this paper, we investigate multi-hop relaying as an efficient fading mitigation tool for coherent free-space optical (FSO) systems over atmospheric turbulence channels. We consider an FSO relaying system with decode-and-forward relay nodes and multiple heterodyne receivers with modal compensation. Based on a recently introduced statistical characterization for the combined effects of log-normal turbulence fading and modal compensation, we derive the outage probability and quantify the potential performance improvements through the derivation of diversity multiplexing tradeoff (DMT) and diversity gain. Our outage analysis yields impressive power savings for multi-hop relaying even with a single-relay. In addition, the DMT analysis in practical signal-to-noise ratio (SNR) ranges demonstrates that multi-hop transmission scheme improves finite-SNR diversity gain throughout the range of the multiplexing gain.en_US
dc.description.sponsorshipEuropean Commission
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/268318en_US
dc.relation.ispartofIEEE Transactions on Communications
dc.rightsrestrictedAccess
dc.titleMulti-hop coherent free-space optical communications over atmospheric turbulence channelsen_US
dc.typeArticleen_US
dc.peerreviewedyesen_US
dc.publicationstatuspublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID124615
dc.contributor.ozuauthorUysal, Murat
dc.identifier.volume59
dc.identifier.issue6
dc.identifier.startpage1657
dc.identifier.endpage1663
dc.identifier.wosWOS:000291820700021
dc.identifier.doi10.1109/TCOMM.2011.050911.100069
dc.subject.keywordsFree-space optical systemsen_US
dc.subject.keywordsMulti-hop transmissionen_US
dc.subject.keywordsFinite-SNR diversity-multiplexing tradeoffen_US
dc.subject.keywordsAtmospheric turbulence-induced fadingen_US
dc.identifier.scopusSCOPUS:2-s2.0-79959553276


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