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

Fatma Benkhelifa, Mohamed-Slim Alouini, Zouheir Rezki

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

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-o ff power control scheme.
Original languageEnglish (US)
Pages (from-to)1264-1267
Number of pages4
JournalIEEE Communications Letters
Volume17
Issue number6
DOIs
StatePublished - Jun 26 2013

Fingerprint

Dive into the research topics of 'Low SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels'. Together they form a unique fingerprint.

Cite this