OFDM with Index Modulation in Orbital Angular Momentum Multiplexed Free Space Optical Links

Communication using orbital angular momentum (OAM) modes has recently received a considerable interest in free space optical (FSO) communications. Propagating OAM modes through free space may be subject to atmospheric turbulence (AT) distortions that cause signal attenuation and crosstalk which degr...

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Bibliographic Details
Published inIEEE Vehicular Technology Conference pp. 1 - 5
Main Authors Amhoud, El-Mehdi, Chafii, Marwa, Nimr, Ahmad, Fettweis, Gerhard
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2021
Subjects
Atmospheric Turbulence
Bit error rate
Free Space Optics
Index Modulation
OFDM
Optical attenuators
Optical crosstalk
Optical distortion
Orbital Angular Momentum
Space vehicles
Spectral efficiency
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Summary:Communication using orbital angular momentum (OAM) modes has recently received a considerable interest in free space optical (FSO) communications. Propagating OAM modes through free space may be subject to atmospheric turbulence (AT) distortions that cause signal attenuation and crosstalk which degrades the system capacity and increases the error probability. In this paper, we propose to enhance the OAM FSO communications in terms of bit error rate and spectral efficiency, for different levels of AT regimes. The performance gain is achieved by introducing orthogonal frequency division multiplexing (OFDM) with index modulation technique to the OAM FSO system.
ISSN:2577-2465
DOI:10.1109/VTC2021-Spring51267.2021.9448928