Performance analysis for multi-hop FSO communication system over M distribution with pointing errors

Pang, Weina; Chen, Wenwen; Song, Yatong; Li, Ganggang; Wang, Ping; Duan, Mengyi; Li, Shuang

doi:10.1109/icocn53177.2021.9563759

“…A. PDF and CDF of SNR Lemma 2: The PDF and CDF of SNR for a single-hop OWC system over fog-induced fading with non-zero boresight pointing errors are given as: (23) where 0 ≤ γ ≤ A 2 i γi . Proof: See Appendix C. It can be seen that ( 22) and ( 23) generalizes the analysis presented in [36] for zero boresight pointing errors.…”

Section: Short-range Owc Systemmentioning

confidence: 99%

“…Substituting (23) in (15), we can get an exact OP for the single-hop transmissions. Further, we apply Γ(s,x) (23) to find the asymptotic expression of the OP at high SNR…”

Section: B Outage Probabilitymentioning

confidence: 99%

“…Tang et al extended the work presented in [17] considering the combined effect of pointing errors and Gamma-Gamma distributed atmospheric turbulence for the heterodyne OWC system [20]. Zedini and Alouini developed Fog-Induced Fading [9] IM/DD Gamma-Gamma No No [18] IM/DD Gamma-Gamma No No [19] IM/DD Gamma-Gamma Zero boresight No [20] HD Gamma-Gamma Zero boresight No [21] HD Gamma-Gamma Zero boresight No [22] IM/DD Malága Zero boresight No [23] HD Malága Zero boresight No [26] IM exact and asymptotic analysis for the OP, ABER, and ergodic capacity for an OWC system, pointing errors and atmospheric turbulence. Later, they extended the analysis presented in [19] for the intensity modulation/decision-directed (IM/DD) OWC system [18].…”

Section: Introductionmentioning

confidence: 99%

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Multihop Optical Wireless Communication Over ${\cal{F}}$-Turbulence Channels and Generalized Pointing Errors with Fog-Induced Fading

Rahman¹,

Zafaruddin²,

Chaubey³

2022

Preprint

0

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Multihop relaying is a potential technique to mitigate channel impairments in optical wireless communications (OWC). In this paper, multiple fixed-gain amplify-and-forward (AF) relays are employed to enhance the OWC performance under the combined effect of atmospheric turbulence, pointing errors, and fog. We consider a long-range OWC link by modeling the atmospheric turbulence by the Fisher-Snedecor F distribution, pointing errors by the generalized non-zero boresight model, and random path loss due to fog. We also consider a short-range OWC system by ignoring the impact of atmospheric turbulence. We derive novel upper bounds on the probability density function (PDF) and cumulative distribution function (CDF) of the end-toend signal-to-noise ratio (SNR) for both short and long-range multihop OWC systems by developing exact statistical results for a single-hop OWC system under the combined effect of Fturbulence channels, non-zero boresight pointing errors, and foginduced fading. Based on these expressions, we present analytical expressions of outage probability (OP) and average bit-error-rate (ABER) performance for the considered OWC systems involving single-variate Fox's H and Meijer's G functions. Moreover, asymptotic expressions of the outage probability in high SNR region are developed using simpler Gamma functions to provide insights on the effect of channel and system parameters. The derived analytical expressions are validated through Monte-Carlo simulations, and the scaling of the OWC performance with the number of relay nodes is demonstrated with a comparison to the single-hop transmission.

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“…Citation information: DOI 10.1109/ JPHOT.2022.3200247 This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/ Fog-Induced Fading [9] IM/DD Gamma-Gamma No No [18] IM/DD Gamma-Gamma No No [19] IM/DD Gamma-Gamma Zero boresight No [20] HD Gamma-Gamma Zero boresight No [21] HD Gamma-Gamma Zero boresight No [22] IM/DD Malága Zero boresight No [23] HD Malága Zero boresight No [26] IM/DD Double Generalized Gamma Zero boresight No [This paper] IM/DD Fisher-Snedecor F Non-zero boresight Yes alized Malaga turbulence and developed ABER performance for the multihop heterodyne OWC system [22]. Ashrafzadeh et al used the method of induction to develope and exact analysis for an AF-assisted multihop OWC system under the double generalized Gamma turbulence with pointing errors [24], [25].…”

Section: Introductionmentioning

confidence: 99%

Multihop Optical Wireless Communication Over ${\mathcal {F}}$-Turbulence Channels and Generalized Pointing Errors With Fog-Induced Fading

Rahman

¹

,

Zafaruddin

²

,

Chaubey

³

2022

View full text Add to dashboard Cite

Multihop relaying is a potential technique to mitigate channel impairments in optical wireless communications (OWC). In this paper, multiple fixed-gain amplify-and-forward (AF) relays are employed to enhance the OWC performance under the combined effect of atmospheric turbulence, pointing errors, and fog. We consider a long-range OWC link by modeling the atmospheric turbulence by the Fisher-Snedecor F distribution, pointing errors by the generalized non-zero boresight model, and random path loss due to fog. We also consider a short-range OWC system by ignoring the impact of atmospheric turbulence. We derive novel upper bounds on the probability density function (PDF) and cumulative distribution function (CDF) of the end-toend signal-to-noise ratio (SNR) for both short and long-range multihop OWC systems by developing exact statistical results for a single-hop OWC system under the combined effect of Fturbulence channels, non-zero boresight pointing errors, and foginduced fading. Based on these expressions, we present analytical expressions of outage probability (OP) and average bit-error-rate (ABER) performance for the considered OWC systems involving single-variate Fox's H and Meijer's G functions. Moreover, asymptotic expressions of the outage probability in high SNR region are developed using simpler Gamma functions to provide insights on the effect of channel and system parameters. The derived analytical expressions are validated through Monte-Carlo simulations, and the scaling of the OWC performance with the number of relay nodes is demonstrated with a comparison to the single-hop transmission.

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Performance Analysis of Multi-UAV Optical Communication Systems Over Foggy Channel Under Málaga Turbulence and Pointing Error Impairments

Xu,

Yu,

Wang

et al. 2024

IEEE Photonics J.

0

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Performance analysis for multi-hop FSO communication system over M distribution with pointing errors

Cited by 3 publications

References 8 publications

Multihop Optical Wireless Communication Over ${\cal{F}}$-Turbulence Channels and Generalized Pointing Errors with Fog-Induced Fading

Multihop Optical Wireless Communication Over ${\cal{F}}$-Turbulence Channels and Generalized Pointing Errors with Fog-Induced Fading

Multihop Optical Wireless Communication Over ${\mathcal {F}}$-Turbulence Channels and Generalized Pointing Errors With Fog-Induced Fading

Performance Analysis of Multi-UAV Optical Communication Systems Over Foggy Channel Under Málaga Turbulence and Pointing Error Impairments

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