Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error

Kartik Wardhan; S. M. Zafaruddin

doi:10.1109/VTC2020-Fall49728.2020.9348550

Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error

Kartik Wardhan, S. M. Zafaruddin

Birla Institute of Technology and Science Pilani

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Optical wireless communication (OWC) is highly vulnerable to the atmospheric turbulence and pointing error. Performance analysis of the OWC system under the combined channel effects of pointing errors and atmospheric turbulence is desirable for its efficient deployment. The widely used Gamma-Gamma statistical model for atmospheric turbulence, which consists of Bessel function, generally leads to complicated analytical expressions. In this paper, we consider the three-parameter exponentiated Weibull model for the atmospheric turbulence to analyze the ergodic rate and average signal-to-noise ratio (SNR) performance of a single-link OWC system. We derive simplified analytical expressions on the performance under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. We also derive approximate expressions on the performance under the atmospheric turbulence by considering negligible pointing error. In order to evaluate the performance at high SNR, we also develop asymptotic bounds on the average SNR and ergodic rate for the considered system. We demonstrate the tightness of derived expressions through numerical and simulation analysis along with a comparison to the performance obtained using the Gamma-Gamma model.

Original language	English
Title of host publication	2020 IEEE 92nd Vehicular Technology Conference, VTC 2020-Fall - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728194844
DOIs	https://doi.org/10.1109/VTC2020-Fall49728.2020.9348550
State	Published - Nov 2020
Externally published	Yes
Event	92nd IEEE Vehicular Technology Conference, VTC 2020-Fall - Virtual, Victoria, Canada Duration: 18 Nov 2020 → …

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2020-November
ISSN (Print)	1550-2252

Conference

Conference	92nd IEEE Vehicular Technology Conference, VTC 2020-Fall
Country/Territory	Canada
City	Virtual, Victoria
Period	18/11/20 → …

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Funding

ACKNOWLEDGMENT This work is supported in part by the Science and Engineering Research Board (SERB), Govt. of India under Start-up Research Grant SRG/2019/002345.

Funders	Funder number
Science and Engineering Research Board

Keywords

Atmospheric turbulence
Ergodic capacity
Exotic channels
OWC
SNR
performance analysis
pointing error

Access to Document

10.1109/VTC2020-Fall49728.2020.9348550

Cite this

Wardhan, K., & Zafaruddin, S. M. (2020). Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error. In 2020 IEEE 92nd Vehicular Technology Conference, VTC 2020-Fall - Proceedings Article 9348550 (IEEE Vehicular Technology Conference; Vol. 2020-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTC2020-Fall49728.2020.9348550

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title = "Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error",

abstract = "Optical wireless communication (OWC) is highly vulnerable to the atmospheric turbulence and pointing error. Performance analysis of the OWC system under the combined channel effects of pointing errors and atmospheric turbulence is desirable for its efficient deployment. The widely used Gamma-Gamma statistical model for atmospheric turbulence, which consists of Bessel function, generally leads to complicated analytical expressions. In this paper, we consider the three-parameter exponentiated Weibull model for the atmospheric turbulence to analyze the ergodic rate and average signal-to-noise ratio (SNR) performance of a single-link OWC system. We derive simplified analytical expressions on the performance under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. We also derive approximate expressions on the performance under the atmospheric turbulence by considering negligible pointing error. In order to evaluate the performance at high SNR, we also develop asymptotic bounds on the average SNR and ergodic rate for the considered system. We demonstrate the tightness of derived expressions through numerical and simulation analysis along with a comparison to the performance obtained using the Gamma-Gamma model.",

keywords = "Atmospheric turbulence, Ergodic capacity, Exotic channels, OWC, SNR, performance analysis, pointing error",

author = "Kartik Wardhan and Zafaruddin, {S. M.}",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 92nd IEEE Vehicular Technology Conference, VTC 2020-Fall ; Conference date: 18-11-2020",

year = "2020",

month = nov,

doi = "10.1109/VTC2020-Fall49728.2020.9348550",

language = "אנגלית",

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Wardhan, K & Zafaruddin, SM 2020, Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error. in 2020 IEEE 92nd Vehicular Technology Conference, VTC 2020-Fall - Proceedings., 9348550, IEEE Vehicular Technology Conference, vol. 2020-November, Institute of Electrical and Electronics Engineers Inc., 92nd IEEE Vehicular Technology Conference, VTC 2020-Fall, Virtual, Victoria, Canada, 18/11/20. https://doi.org/10.1109/VTC2020-Fall49728.2020.9348550

Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error. / Wardhan, Kartik; Zafaruddin, S. M.
2020 IEEE 92nd Vehicular Technology Conference, VTC 2020-Fall - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. 9348550 (IEEE Vehicular Technology Conference; Vol. 2020-November).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Optical wireless communication (OWC) is highly vulnerable to the atmospheric turbulence and pointing error. Performance analysis of the OWC system under the combined channel effects of pointing errors and atmospheric turbulence is desirable for its efficient deployment. The widely used Gamma-Gamma statistical model for atmospheric turbulence, which consists of Bessel function, generally leads to complicated analytical expressions. In this paper, we consider the three-parameter exponentiated Weibull model for the atmospheric turbulence to analyze the ergodic rate and average signal-to-noise ratio (SNR) performance of a single-link OWC system. We derive simplified analytical expressions on the performance under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. We also derive approximate expressions on the performance under the atmospheric turbulence by considering negligible pointing error. In order to evaluate the performance at high SNR, we also develop asymptotic bounds on the average SNR and ergodic rate for the considered system. We demonstrate the tightness of derived expressions through numerical and simulation analysis along with a comparison to the performance obtained using the Gamma-Gamma model.

AB - Optical wireless communication (OWC) is highly vulnerable to the atmospheric turbulence and pointing error. Performance analysis of the OWC system under the combined channel effects of pointing errors and atmospheric turbulence is desirable for its efficient deployment. The widely used Gamma-Gamma statistical model for atmospheric turbulence, which consists of Bessel function, generally leads to complicated analytical expressions. In this paper, we consider the three-parameter exponentiated Weibull model for the atmospheric turbulence to analyze the ergodic rate and average signal-to-noise ratio (SNR) performance of a single-link OWC system. We derive simplified analytical expressions on the performance under the combined effect of atmospheric turbulence and pointing errors in terms of system parameters. We also derive approximate expressions on the performance under the atmospheric turbulence by considering negligible pointing error. In order to evaluate the performance at high SNR, we also develop asymptotic bounds on the average SNR and ergodic rate for the considered system. We demonstrate the tightness of derived expressions through numerical and simulation analysis along with a comparison to the performance obtained using the Gamma-Gamma model.

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Simplified Performance Analysis of OWC System over Atmospheric Turbulence with Pointing Error

Abstract

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Keywords

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