On the Performance of Multi-Hop Free Space Optical Cooperative Systems

Ashrafzadeh, Behnam; Zaimbashi, Amir; Soleirnani-Nasab, Ehsan; Uysal, Murat

doi:10.1109/glocom.2018.8647949

Cited by 2 publications

(4 citation statements)

References 17 publications

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“…Thus, invoking (43) in (11) and applying the definitions of Fox's H-function, we get PDF of SNR for multihop transmission in (24). The CDF is driven by applying standard mathematical steps in F SR γi (γ) = γ 0 f SR γi (γ)dγ to get (25), which concludes the proof of Theorem 2.…”

Section: Appendix B: Theorem 1 (Long-range and Multihop)mentioning

confidence: 64%

“…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%

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

2022

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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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Section: Appendix B: Theorem 1 (Long-range and Multihop)mentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

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

2022

View full text Add to dashboard Cite

show abstract

“…Thus, invoking (42) in (11) and applying the definitions of Fox's H-function, we get PDF of SNR for multihop transmission in (24). The CDF is driven by applying standard mathematical steps in F SR γi (γ) = γ 0 f SR γi (γ)dγ to get (25), which concludes the proof of Theorem 2.…”

Section: Appendix B: Theorem 1 (Long-range and Multihop)mentioning

confidence: 64%

“…Alheadary et al considered the misaligned generalized 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%