TY - JOUR
T1 - Low SNR Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels
AU - Benkhelifa, Fatma
AU - Alouini, Mohamed-Slim
AU - Rezki, Zouheir
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/6/26
Y1 - 2013/6/26
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-o ff 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-o ff power control scheme.
UR - http://hdl.handle.net/10754/267253
UR - http://ieeexplore.ieee.org/document/6515209/
UR - http://www.scopus.com/inward/record.url?scp=84880163791&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2013.043013.130119
DO - 10.1109/LCOMM.2013.043013.130119
M3 - Article
SN - 1089-7798
VL - 17
SP - 1264
EP - 1267
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 6
ER -