Low SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels

Handle URI:
http://hdl.handle.net/10754/270292
Title:
Low SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels
Authors:
Benkhelifa, Fatma; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Rezki, Zouheir
Abstract:
In 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-off power control scheme.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Issue Date:
23-Feb-2013
Type:
Technical Report
Appears in Collections:
Technical Reports; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBenkhelifa, Fatmaen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorRezki, Zouheiren
dc.date.accessioned2013-02-23T05:59:15Z-
dc.date.available2013-02-23T05:59:15Z-
dc.date.issued2013-02-23en
dc.identifier.urihttp://hdl.handle.net/10754/270292en
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-off power control scheme.en
dc.language.isoenen
dc.subjectFSOen
dc.subjectGamma-Gamma distributionen
dc.subjectErgodic capacityen
dc.subjectwater fillingen
dc.subjectOn-Off power controlen
dc.subjectLow SNRen
dc.titleLow SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channelsen
dc.typeTechnical Reporten
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
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