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dc.contributor.authorBenkhelifa, Fatma
dc.contributor.authorAlouini, Mohamed-Slim
dc.contributor.authorRezki, Zouheir
dc.date.accessioned2013-01-27T06:27:23Z
dc.date.available2013-01-27T06:27:23Z
dc.date.issued2013-01-27
dc.identifier.issn1089-7798
dc.identifier.doi10.1109/LCOMM.2013.043013.130119
dc.identifier.urihttp://hdl.handle.net/10754/267253
dc.description.abstractIn this paper, we study the ergodic capacity of free space optical communication systems over Gamma-Gamma atmospheric turbulence fading channels with perfect channel state information at both the transmitter and the receiver. In our framework, we mainly focus on the low signal-to-noise ratio range and show that the ergodic capacity scales proportionally to SNR log^4(1/SNR). We show also that one-bit CSI feedback at the transmitter is enough to achieve this capacity using an on-o ff power control scheme.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.rightsUnder review in IEEE Communications Letters
dc.subjectFSO
dc.subjectGamma-Gamma distribution
dc.subjectErgodic capacity
dc.subjectWater-filling
dc.subjectOn-Off power control
dc.subjectLow SNR
dc.titleLow SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journalIEEE Communications Letters
dc.contributor.institutionElectronics and Communication Department, Faculty of Engineering, Cairo University, Cairo, Egypt
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personBenkhelifa, Fatma
kaust.personRezki, Zouheir
kaust.personAlouini, Mohamed-Slim
refterms.dateFOA2018-06-13T13:57:40Z


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