Single-Layer Phase Screen With Pointing Errors for Free Space Optical Communication

Liu, Xin; Jiang, Dagang; Hu, Z.; Zeng, Qinyong; Qin, Kaiyu

doi:10.1109/access.2021.3099871

Cited by 7 publications

(13 citation statements)

References 42 publications

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“…The Monte Carlo simulation is widely used in FSOC system link simulation [19,20]. In this section, we adopted Monte Carlo simulation to design the propagation process of an HG beam under pointing error.…”

Section: Numerical Simulation Results and Verificationmentioning

confidence: 99%

Propagation Characteristics of Hermite–Gaussian Beam under Pointing Error in Free Space

et al. 2022

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Hermite–Gaussian (HG) beams have significant potential to improve the capacity of free-space optical communication (FSOC). The influence of pointing error on the propagation characteristics of an HG beam cannot be ignored in the FSOC system. Although the average irradiance of the HG beam under a small pointing error from the FSOC tracking mechanism has been investigated through Taylor series approximation, here, we propose that the average irradiance of the HG beam under an arbitrary magnitude pointing error can be deduced through a statistical averaging method. We firstly found that the average irradiance profile of an HG beam finally changes into an approximately Gaussian shape with the increase in pointing error and propagation distance and a larger beam waist at the transmitter could mitigate the profile change. The correlation coefficient between deduced theoretical expression and Monte Carlo simulation reaches 0.999. Additionally, the effective spot size, location of the local extreme value, average received power and signal-to-noise ratio (SNR) loss for an HG beam under pointing error were theoretically deduced and analyzed for the first time. We found that the effective spot size of the higher-order HG beam experiences less broadening under the pointing error than that of the lower-order HG beam. The fundamental theoretical expressions of average irradiance for an HG beam under pointing error have provided effective guidance for analyzing the propagation characteristics and link performance.

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Section: Numerical Simulation Results and Verificationmentioning

confidence: 99%

Propagation Characteristics of Hermite–Gaussian Beam under Pointing Error in Free Space

et al. 2022

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“…( 9) using kernel smoothing method. The irradiance PDF of Hermite-Gaussian beam can be shown as follows [17]:…”

Section: 2fade Probabilitymentioning

confidence: 99%

“…The phase perturbation caused by atmosphere turbulence and pointing error are randomly changed. By using the single-layer phase screen with pointing error simulation method, the Hermite-Gaussian beam optical field at receiver can be expressed as follows [17]:…”

Section: 1hermite-gaussian Beam Optical Field At Receiver Using Singl...mentioning

confidence: 99%

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Fade probability simulation analysis for aircraft platform wireless optical communication based on Hermite-Gaussian beam

Liu

Zhang

Jiang

et al. 2022

J. Phys.: Conf. Ser.

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Wireless optical communication technology can provide larger channel capacity for aircraft platforms which has great potentiality. In the application scenario of aircraft platform, the pointing error is inevitable. This study analyzes the fade probability of the link based on Hermite-Gaussian beam by using single-layer phase screen with pointing error simulation method and comparing with Gaussian beam. The higher order Hermite-Gaussian beam shows better link stability performance. Atmosphere turbulence has obvious effect on fade probability when the standard variance of pointing error is small, with the increase of standard variance of pointing error, the major influence factor for fade probability is pointing error rather than atmosphere turbulence.

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“…(1). ϕðx; yÞ is the phase perturbation caused by atmospheric turbulence, which can be expressed as follows: [26][27][28] E Q -T A R G E T ; t e m p : i n t r a l i n k -; e 0 0 9 ; 1 1 6 ; 7 1 1…”

Section: Numerical Simulation and Phase Screen Verificationmentioning

confidence: 99%

Average irradiance of Hermite–Gaussian beam under pointing error in atmospheric turbulence

et al. 2022

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Hermite-Gaussian (HG) beam has enormous potential to enhance the capacity of free-space optical (FSO) communication due to its unique orthogonal spatial modes. However, the combined influence of atmospheric turbulence and pointing error on average irradiance for a mobile FSO link have rarely been reported before. The closed form of average irradiance of an HG beam under an arbitrary magnitude pointing error in atmospheric turbulence is deduced through a statistical averaging method. The accuracy of the proposed theoretical results was verified by a phase screen simulation. We found that the average irradiance profile of an HG beam finally changes into an approximate Gaussian shape with the increase of atmospheric turbulence and pointing error, and the larger beam waist can mitigate the profile change with an increase of atmospheric turbulence and pointing error. Based on the expressions of average irradiance, the effective spot size and average received power under the pointing error in atmospheric turbulence were derived and analyzed. This research provides the fundamental theoretical expressions for performance research on an HG beam-based mobile FSO link in atmospheric turbulence.

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Single-Layer Phase Screen With Pointing Errors for Free Space Optical Communication

Cited by 7 publications

References 42 publications

Propagation Characteristics of Hermite–Gaussian Beam under Pointing Error in Free Space

Propagation Characteristics of Hermite–Gaussian Beam under Pointing Error in Free Space

Fade probability simulation analysis for aircraft platform wireless optical communication based on Hermite-Gaussian beam

Average irradiance of Hermite–Gaussian beam under pointing error in atmospheric turbulence

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