Unified Finite Series Approximation of FSO Performance over Strong Turbulence Combined with Various Pointing Error Conditions

Kug Jin Jung; Sung Sik Nam; Mohamed Slim Alouini; Young Chai Ko

doi:10.1109/TCOMM.2020.3008459

Unified Finite Series Approximation of FSO Performance over Strong Turbulence Combined with Various Pointing Error Conditions

Kug Jin Jung, Sung Sik Nam, Mohamed Slim Alouini, Young Chai Ko

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

In this paper, we investigate both the bit error rate (BER) and outage performance of free-space optical (FSO) links over strong turbulence combined with various pointing error conditions. Considering atmospheric turbulence and pointing errors as main factors that deteriorate the quality of an optical link, we obtain a unified finite series approximation of the composite probability density function, which embraces generalized pointing error models. This approximation leads to new unified formulas for the BER and outage capacity of an FSO link, which account for the two possible detection mechanisms of intensity modulation/direct detection and heterodyne detection. Selected simulation results confirm that the newly derived approximations can give precise predictions of both the average BER and the outage capacity of FSO communication that are generally applicable to all environments.

Original language	English
Article number	9138485
Pages (from-to)	6413-6425
Number of pages	13
Journal	IEEE Transactions on Communications
Volume	68
Issue number	10
DOIs	https://doi.org/10.1109/TCOMM.2020.3008459
Publication status	Published - 2020 Oct

Keywords

Wireless optical communication (WOC)
bit error rate (BER)
generalized pointing errors
mobile platform
outage capacity
unified expression

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCOMM.2020.3008459

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title = "Unified Finite Series Approximation of FSO Performance over Strong Turbulence Combined with Various Pointing Error Conditions",

abstract = "In this paper, we investigate both the bit error rate (BER) and outage performance of free-space optical (FSO) links over strong turbulence combined with various pointing error conditions. Considering atmospheric turbulence and pointing errors as main factors that deteriorate the quality of an optical link, we obtain a unified finite series approximation of the composite probability density function, which embraces generalized pointing error models. This approximation leads to new unified formulas for the BER and outage capacity of an FSO link, which account for the two possible detection mechanisms of intensity modulation/direct detection and heterodyne detection. Selected simulation results confirm that the newly derived approximations can give precise predictions of both the average BER and the outage capacity of FSO communication that are generally applicable to all environments.",

keywords = "Wireless optical communication (WOC), bit error rate (BER), generalized pointing errors, mobile platform, outage capacity, unified expression",

author = "Jung, {Kug Jin} and Nam, {Sung Sik} and Alouini, {Mohamed Slim} and Ko, {Young Chai}",

note = "Funding Information: Manuscript received February 12, 2020; revised June 7, 2020; accepted July 4, 2020. Date of publication July 10, 2020; date of current version October 16, 2020. This research was supported by the MSIT (Ministry of Science and ICT), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2020-2015-0-00385) supervised by the IITP (Institute for Information & communications Technology Promotion). This is an extended version of article which was presented in ICC (2018). The associate editor coordinating the review of this article and approving it for publication was G.-C. Yang. (Corresponding authors: Sung Sik Nam; Young-Chai Ko.) Kug-Jin Jung and Young-Chai Ko are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: kug0860@korea.ac.kr; koyc@korea.ac.kr). Publisher Copyright: {\textcopyright} 1972-2012 IEEE.",

year = "2020",

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N1 - Funding Information: Manuscript received February 12, 2020; revised June 7, 2020; accepted July 4, 2020. Date of publication July 10, 2020; date of current version October 16, 2020. This research was supported by the MSIT (Ministry of Science and ICT), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2020-2015-0-00385) supervised by the IITP (Institute for Information & communications Technology Promotion). This is an extended version of article which was presented in ICC (2018). The associate editor coordinating the review of this article and approving it for publication was G.-C. Yang. (Corresponding authors: Sung Sik Nam; Young-Chai Ko.) Kug-Jin Jung and Young-Chai Ko are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: kug0860@korea.ac.kr; koyc@korea.ac.kr). Publisher Copyright: © 1972-2012 IEEE.

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N2 - In this paper, we investigate both the bit error rate (BER) and outage performance of free-space optical (FSO) links over strong turbulence combined with various pointing error conditions. Considering atmospheric turbulence and pointing errors as main factors that deteriorate the quality of an optical link, we obtain a unified finite series approximation of the composite probability density function, which embraces generalized pointing error models. This approximation leads to new unified formulas for the BER and outage capacity of an FSO link, which account for the two possible detection mechanisms of intensity modulation/direct detection and heterodyne detection. Selected simulation results confirm that the newly derived approximations can give precise predictions of both the average BER and the outage capacity of FSO communication that are generally applicable to all environments.

AB - In this paper, we investigate both the bit error rate (BER) and outage performance of free-space optical (FSO) links over strong turbulence combined with various pointing error conditions. Considering atmospheric turbulence and pointing errors as main factors that deteriorate the quality of an optical link, we obtain a unified finite series approximation of the composite probability density function, which embraces generalized pointing error models. This approximation leads to new unified formulas for the BER and outage capacity of an FSO link, which account for the two possible detection mechanisms of intensity modulation/direct detection and heterodyne detection. Selected simulation results confirm that the newly derived approximations can give precise predictions of both the average BER and the outage capacity of FSO communication that are generally applicable to all environments.

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Unified Finite Series Approximation of FSO Performance over Strong Turbulence Combined with Various Pointing Error Conditions

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