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

Fatma Benkhelifa; Zouheir Rezki; Mohamed-Slim Alouini

doi:10.1109/LCOMM.2013.043013.130119

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

Fatma Benkhelifa, Zouheir Rezki, Mohamed-Slim Alouini

King Abdullah University of Science and Technology

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1264-1267
Number of pages	4
Journal	IEEE Communications Letters
Volume	17
Issue number	6
DOIs	https://doi.org/10.1109/LCOMM.2013.043013.130119
Publication status	Published - 13 May 2013
Externally published	Yes

Keywords

Signal to noise ratio
Optical transmitters
Optical receivers
Optical feedback
Radio frequency
Fading

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10.1109/LCOMM.2013.043013.130119

Cite this

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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.",

keywords = "Signal to noise ratio, Optical transmitters, Optical receivers, Optical feedback, Radio frequency, Fading",

author = "Fatma Benkhelifa and Zouheir Rezki and Mohamed-Slim Alouini",

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AU - Benkhelifa, Fatma

AU - Rezki, Zouheir

AU - Alouini, Mohamed-Slim

PY - 2013/5/13

Y1 - 2013/5/13

N2 - 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.

AB - 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.

KW - Signal to noise ratio

KW - Optical transmitters

KW - Optical receivers

KW - Optical feedback

KW - Radio frequency

KW - Fading

UR - https://www.scopus.com/pages/publications/84880163791

U2 - 10.1109/LCOMM.2013.043013.130119

DO - 10.1109/LCOMM.2013.043013.130119

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SP - 1264

EP - 1267

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 6

ER -

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

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Keywords

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