Impact of nonzero boresight and jitter pointing errors on the performance of M-ary ASK/FSO system over Málaga $$\left( {\mathcal{M}} \right)$$ atmospheric turbulence

Yasser, Mahmoud; Ghuniem, Atef M.; Hassan, Kamel M.; Ismail, Tawfik

doi:10.1007/s11082-020-02715-9

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…The entire study is done with this condition so that an upper hand on the losses and other parameters is derived from this study. More insights on the effect of atmospheric turbulence on the performance of FSO links is reported in detail in References 41–46. Aerosols are tiny solid or liquid particles suspended in the air, such as dust, smoke, fog, or haze.…”

Section: Results Of Numerical Simulationmentioning

confidence: 99%

Novel coding schemes for dual wavelength quantum cascade laser‐based free space optical links

Ashok

Madhan

Raja

et al. 2023

Int J Numerical Modelling

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Dual wavelength quantum cascade lasers (DW‐QCLs) are a type of semiconductor laser that can emit two different wavelengths of light simultaneously. They are constructed using quantum cascade structures, consisting of multiple layers of semiconductor materials carefully engineered to produce the desired wavelengths of light. This research article reports the numerical simulation and evaluation of the maximum capacity of free space optical (FSO) link employing novel coding schemes for DW‐QCL‐based pulsed optical transmitters. A 48‐stage DW‐QCL emitting at 10.5 and 8.9 μm wavelengths and a Quantum‐Well based Infrared Photodetector based receiver are considered for the study. The performance of the link is analyzed under short pulse transmission from the device at both wavelengths for various scenarios. Optical pulses are obtained either at a single wavelength or two different wavelengths by proper choice of electrical input current amplitude. This feature enables the implementation of four different coding schemes. Among the various coding approaches proposed, the scheme, which operates on symbols, performs the best, providing a maximum link length of 1700m, for a BER of 10−9.

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Section: Results Of Numerical Simulationmentioning

confidence: 99%

Novel coding schemes for dual wavelength quantum cascade laser‐based free space optical links

Ashok

Madhan

Raja

et al. 2023

Int J Numerical Modelling

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“…In contrast, distribution models such as the natural logarithm, G-G, and k distribution describe weak, medium, and strong perturbations. In [21], closed expressions are provided for the rate code error and potential outage. The M distribution is used in [22] to simulate the FSO channel.…”

Section: Related Workmentioning

confidence: 99%

PDF Comparison based on Various FSO Channel Models under Different Atmospheric Turbulence

A. Atiyah,

Abdulameer,

Narkhedel

2023

alkej

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Recently, wireless communication environments with high speeds and low complexity have become increasingly essential. Free-space optics (FSO) has emerged as a promising solution for providing direct connections between devices in such high-spectrum wireless setups. However, FSO communications are susceptible to weather-induced signal fluctuations, leading to fading and signal weakness at the receiver. To mitigate the effects of these challenges, several mathematical models have been proposed to describe the transition from weak to strong atmospheric turbulence, including Rayleigh, lognormal, Málaga, Nakagami-m, K-distribution, Weibull, Negative-Exponential, Inverse-Gaussian, G-G, and Fisher-Snedecor F distributions. This paper extensively studies and analyses different probability density functions (PDFs) that govern the FSO channel, considering various channel models. This paper aims to comprehensively understand how FSO channels can be effectively modeled using different PDFs. Accurate modeling is crucial for designing FSO systems that can operate optimally under potential environmental conditions. Selecting the appropriate PDF model plays a crucial role in determining the FSO channel's performance during system design. With a multitude of PDF models available, this study aims to identify the most effective PDF model to be employed in FSO channel modeling.

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Design and implementation of auto-tracking system for FSO link under pointing error

et al. 2023

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Impact of nonzero boresight and jitter pointing errors on the performance of M-ary ASK/FSO system over Málaga $$\left( {\mathcal{M}} \right)$$ atmospheric turbulence

Cited by 7 publications

References 21 publications

Novel coding schemes for dual wavelength quantum cascade laser‐based free space optical links

Novel coding schemes for dual wavelength quantum cascade laser‐based free space optical links

PDF Comparison based on Various FSO Channel Models under Different Atmospheric Turbulence

Design and implementation of auto-tracking system for FSO link under pointing error

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