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Electrical Engineering and Systems Science > Signal Processing

arXiv:2103.03573 (eess)
[Submitted on 5 Mar 2021]

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

Authors:El-Mehdi Amhoud, Marwa Chafii, Ahmad Nimr, Gerhard Fettweis
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Abstract: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.
Subjects: Signal Processing (eess.SP)
Cite as: arXiv:2103.03573 [eess.SP]
  (or arXiv:2103.03573v1 [eess.SP] for this version)
  https://doi.org/10.48550/arXiv.2103.03573

Submission history

From: El Mehdi Amhoud [view email]
[v1] Fri, 5 Mar 2021 10:17:52 UTC (2,007 KB)
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