TY - JOUR
T1 - OAM Mode Selection and Space-Time Coding for Atmospheric Turbulence Mitigation in FSO Communication
AU - Amhoud, El Mehdi
AU - Trichili, Abderrahmen
AU - Ooi, Boon S.
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): REP/1/3803-01-01
Acknowledgements: This work was partially supported by KAUST-KSU Special Initiative (KKI2) Program, REP/1/3803-01-01.
PY - 2019
Y1 - 2019
N2 - Orbital angular momentum (OAM) multiplexing has recently received considerable interest in free space optical (FSO) communications. Propagating OAM modes through free space may be subject to atmospheric turbulence (AT) distortions that cause intermodal crosstalk and power disparities between OAM modes. In this article, we are interested in multiple-input multiple-output (MIMO) coherent FSO communication systems using OAM. We propose a selection criterion for OAM modes to minimize the impact of AT. To further improve the obtained performance, we propose a space-time (ST) coding scheme at the transmitter. Through numerical simulations of the error probability, we show that the penalty from AT is completely absorbed for the weak AT regime and considerable coding gains are obtained in the strong AT regime.
AB - Orbital angular momentum (OAM) multiplexing has recently received considerable interest in free space optical (FSO) communications. Propagating OAM modes through free space may be subject to atmospheric turbulence (AT) distortions that cause intermodal crosstalk and power disparities between OAM modes. In this article, we are interested in multiple-input multiple-output (MIMO) coherent FSO communication systems using OAM. We propose a selection criterion for OAM modes to minimize the impact of AT. To further improve the obtained performance, we propose a space-time (ST) coding scheme at the transmitter. Through numerical simulations of the error probability, we show that the penalty from AT is completely absorbed for the weak AT regime and considerable coding gains are obtained in the strong AT regime.
UR - http://hdl.handle.net/10754/655952
UR - https://ieeexplore.ieee.org/document/8750791/
UR - http://www.scopus.com/inward/record.url?scp=85069765008&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2925680
DO - 10.1109/ACCESS.2019.2925680
M3 - Article
SN - 2169-3536
VL - 7
SP - 88049
EP - 88057
JO - IEEE Access
JF - IEEE Access
ER -