Joint detection of multiple orbital angular momentum optical modes

Alfowzan, Mohammed; Anguita, Jaime A.; Vasić, Bane

doi:10.1109/glocom.2013.6831431

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…Our Paper 2013 [18] 2015 [15] 2016 [19] 2017 [20] 2019 [21] 2019 [16] 2020 [17] 2020 [12] Channel Model Gauss term, where w (0) is the beam waist, z R = πw (0) 2 /λ is the Rayleigh range, and…”

Section: Novelty and Related Workmentioning

confidence: 99%

Channel Modeling for Orbital Angular Momentum Based Underwater Wireless Optical Systems

Zhu

Yao

Wang

et al. 2022

IEEE Trans. Veh. Technol.

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The underwater turbulence channel is modelled and a unified statistical distribution is applied for characterizing orbital angular momentum (OAM) propagation in underwater wireless optical communication (UWOC) systems. Based on Monte-Carlo simulations, the effects of turbulences are characterized by the multiple phase screens model considering both the coherence width and scintillation index. The phase screen samples are processed by the randomized spectral sampling discrete Fourier transform (DFT) technique. To validate the propagated field distribution, both the phase structure function and optical transfer function are derived and evaluated with the aid of ensemble-averaged results. The Generalized Gamma Distribution (GGD) enriched by an additional independent parameter is applied for modelling the probability density function (PDF) of both the reference-channels, fluctuating irradiance as well as the intermodal crosstalk irradiance between different OAM modes. Furthermore, based on the PDF, the performance metrics of both single input multiple output (SISO) and multiple input multiple output (MIMO) systems are analyzed, based on the average capacity, the bit-error rate and the outage probability.

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Section: Novelty and Related Workmentioning

confidence: 99%

Channel Modeling for Orbital Angular Momentum Based Underwater Wireless Optical Systems

Zhu

Yao

Wang

et al. 2022

IEEE Trans. Veh. Technol.

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“…We denote by P e (V, D v |U ) the average BER of MFH system given V hops jammed by corresponding D v interfering users with Nakagami-m fading channel. Then, we can obtain the average BER P e (V, D v |U ) in MFH communications as (38), shown at the top of this page.…”

Section: Mfh Schemementioning

confidence: 99%

“…If µ = 1/2, it implies that we employ binary non-coherent FSK modulation. In addition, Nakagami-m fading can be used to analyze the system performance in radio vortex wireless communications [38].…”

Section: Performance Analysismentioning

confidence: 99%

Mode Hopping for Anti-Jamming in Radio Vortex Wireless Communications

Liang

Cheng

Zhang

et al. 2018

IEEE Trans. Veh. Technol.

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Frequency hopping (FH) has been widely used as a powerful technique for antijamming in wireless communications. However, as the wireless spectrum is becoming more and more crowded, it is very difficult to achieve efficient antijamming results with FH-based schemes. Orbital angular momentum (OAM), which provides the new angular/mode dimension for wireless communications, offers an intriguing way for antijamming. In this paper, we propose to use the orthogonality of OAM-modes for antijamming in wireless communications. In particular, we propose the mode hopping (MH) scheme for antijamming within the narrow frequency band. We derive the closed-form expression of bit error rate (BER) for multiple users scenario with our developed MH scheme. Our developed MH scheme can achieve the same antijamming results within the narrow frequency band as compared with the conventional wideband FH scheme. Furthermore, we propose mode-frequency hopping (MFH) scheme, which jointly uses our developed MH scheme and the conventional FH scheme to further decrease the BER for wireless communication. Numerical results are presented to show that the BER of our developed MH scheme within the narrow frequency band is the same with that of the conventional wideband FH scheme. Moreover, the BER of our developed MFH schemes is much smaller than that of the conventional FH schemes for wireless communications. Index Terms-Orbital angular momentum (OAM), mode hopping, frequency hopping, mode-frequency hopping, mode decomposition. I. INTRODUCTION F REQUENCY hopping (FH), which is a solid anti-jamming technique, has been extensively used in wireless communications. There exist some typical FH schemes such as adaptive FH [2], differential FH [3], uncoordinated FH [4], adaptive uncoordinated FH [5], and message-driven FH [6], etc. These FH Manuscript

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“…Moreover, the lack of a unified turbulence model makes it difficult to assess the effect of the interference on the performance of OAM modes. In [20], the interference fading between OAM modes was assumed to be part of the added Gaussian noise. This consideration has allowed deriving a theoretical BER expression but was unfortunately not corresponding to the numerically simulated BER.…”

Section: Introductionmentioning

confidence: 99%

A Unified Statistical Model for Atmospheric Turbulence-Induced Fading in Orbital Angular Momentum Multiplexed FSO Systems

Amhoud

Ooi

Alouini

2020

IEEE Trans. Wireless Commun.

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This paper proposes a unified statistical channel model to characterize the atmospheric turbulence induced distortions faced by orbital angular momentum (OAM) in free space optical (FSO) communication systems. In this channel model, the self-channel irradiance of OAM modes as well as crosstalk irradiances between different OAM modes are characterized by a Generalized Gamma distribution (GGD). The latter distribution is shown to provide an excellent match with simulated data for all regimes of atmospheric turbulence. Therefore, it can be used to overcome the computationally complex numerical simulations to model the propagation of OAM modes through atmospheric turbulent FSO channels. The GGD allows obtaining very simple tractable closed-form expressions for a variety of performance metrics. Indeed, the average capacity, the bit-error rate, and the outage probability are

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Joint detection of multiple orbital angular momentum optical modes

Cited by 7 publications

References 5 publications

Channel Modeling for Orbital Angular Momentum Based Underwater Wireless Optical Systems

Channel Modeling for Orbital Angular Momentum Based Underwater Wireless Optical Systems

Mode Hopping for Anti-Jamming in Radio Vortex Wireless Communications

A Unified Statistical Model for Atmospheric Turbulence-Induced Fading in Orbital Angular Momentum Multiplexed FSO Systems

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