Analysis of selection combining scheme for hybrid FSO/RF transmission considering misalignment

Liang, Haodong; Gao, Chao; Li, Yiming; Miao, Maoke; Li, Xiaofeng

doi:10.1016/j.optcom.2018.11.042

Cited by 21 publications

(8 citation statements)

References 15 publications

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Section: Introductionmentioning

confidence: 99%

“…To increase the reliability of FSO communications, recent works in [20]- [22] have considered an RF link as a backup link to the primary FSO link. Specifically in [20], the authors have evaluated the performance of a hybrid FSO/RF network in terms of outage probability and BER by assuming Nakagami-m distribution for the RF link and Gamma-Gamma distribution for the FSO link. The authors in [21] have investigated a hybrid FSO/RF network by considering generalized distributions in modeling FSO and RF links, i.e., Malaga and α − η − κ − µ distributions for FSO and RF links, respectively.…”

Section: Introductionmentioning

confidence: 99%

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On the Performance Analysis of V2N Mixed RF and Hybrid FSO/RF Communication System

et al. 2022

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Vehicular communications allow vehicles to connect with other vehicles and network infrastructures in order to facilitate the transfer of real-time information and dependable transportation. This paper proposes a system that connects vehicles to the network (base station) in two phases using transceiversequipped roadside infrastructures, such as signboards, traffic lights, and street lights, as intermediary relay nodes. In the first phase, the information transfer occurs from vehicles to infrastructure using a radio-frequency (RF) link. The second phase includes establishing communication from the infrastructure to the base station using hybrid free-space optics (FSO)/RF link. In modeling the FSO link, we consider factors like atmospheric attenuation, pointing errors, and atmospheric turbulence-induced fading, which can affect FSO performance. For this set-up, we derive the accurate expressions for the outage probability, system throughput, average symbol error rate, and average end-toend delay. Numerical results corroborate the dependency of the time allocation factor α for the vehicle-to-infrastructure link on the vehicle transmit power. Furthermore, the results elucidate the impact of the length of the transmitted packet and FSO link distance on average end-to-end delay performance. The increase in distance between infrastructure and base station can be compensated by reducing the length of packets to achieve desirable delay performance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the Performance Analysis of V2N Mixed RF and Hybrid FSO/RF Communication System

et al. 2022

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“…Therefore, the operation parameters of FSO communication systems are modified depending on the atmospheric conditions. A hybrid free-space optical (FSO)/radio frequency (RF) communication systems are example of combining diversity scheme [10]. Other Related work considers multiple parallel FSO links which can support data rates.…”

Section: Introductionmentioning

confidence: 99%

Mitigating the Influence of Dense Oil Fires on Free-Space Optical Communication

Zaker

Taban

Mohammed

2020

EUREKA: Physics and Engineering

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This study estimates the performance of a free space optical system (FSO) affected by air pollutants from oil fires. Simulations are performed to evaluate the reliability of optical propagation according to the length of the FSO channels under two beam angle angles. The proposed FSO system parameters such as the Q-factor, BER and reception capacity are successfully used to reduce channel loss. Results demonstrate that the proposed FSO link performs satisfactorily when the divergence angle is 1 mrad and the distance is from 0.5 km to 0.9 km. Q-factor and receiving power decrease when the divergence angle of beam increases to 2 mrad, and a link is achieved when the distance is from 0.5 km to 0.7 km. The eye diagram is used to evaluate and confirm the quality of received data. An eye opening is observed at 0.5 km for both divergence angles. Then, the eye completely closes at 1 km for 2 mrad, thereby degrading the performance. Therefore, these results can be conducted for similar systems optimization options by applying our analysis

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“…In the literature, SC receivers have been investigated in various studies over different fading channels . The average symbol error probability and channel capacity (CC) of SC receivers were derived for Weibull fading channels in the work of Sagias et al In the work of Velkov, closed‐form formulations were proposed for the outage probability (OP), the average level crossing rate and the average fade duration of a dual‐branch SC receiver in Nakagami fading channels.…”

Section: Introductionmentioning

confidence: 99%

“…The average symbol error probability and channel capacity (CC) of SC receivers were derived for Weibull fading channels in the work of Sagias et al In the work of Velkov, closed‐form formulations were proposed for the outage probability (OP), the average level crossing rate and the average fade duration of a dual‐branch SC receiver in Nakagami fading channels. Liang et al investigated the hybrid free‐space optical communication system by employing the SC diversity scheme. The OP and average SNR of dual‐branch diversity with SC in Rayleigh and Nakagami‐ m fading channels were presented in other works .…”

Section: Introductionmentioning

confidence: 99%

On the performance of dual‐branch selection diversity combining in α−κ−μ fading environments

Kapucu

2019

Trans Emerging Tel Tech

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In this paper, the performance of a dual-branch selection combining (SC) system is analyzed over − − fading channels. First, an outage probability (OP) expression is presented for a dual-branch diversity with the SC scheme in − − fading channels by using cumulative distribution function (CDF). By using the probability density function (PDF) and CDF of − − distribution, the PDF of total output instantaneous signal-to-noise ratio (SNR) is obtained which is subsequently utilized for the analysis of the considered system. Based on this PDF expression, bit error probability (BEP) expressions are derived with the use of a simple and tight upper bound approximation of Gaussian Q-function. In addition to these, we propose analytical effective capacity (EC) expressions for a dual-branch SC system under − − fading conditions. Then, we present simplified expressions for the OP, BEP, and EC at high SNR. Finally, we illustrate the OP, BEP (for binary phase shift keying and quadrature phase shift keying modulation formats), and EC performances for different configurations of , , and parameters. In order to validate our analytical results, comparisons between the exact simulations and analytical results are also provided.Trans Emerging Tel Tech. 2019;30:e3719.wileyonlinelibrary.com/journal/ett

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Analysis of selection combining scheme for hybrid FSO/RF transmission considering misalignment

Cited by 21 publications

References 15 publications

On the Performance Analysis of V2N Mixed RF and Hybrid FSO/RF Communication System

On the Performance Analysis of V2N Mixed RF and Hybrid FSO/RF Communication System

Mitigating the Influence of Dense Oil Fires on Free-Space Optical Communication

On the performance of dual‐branch selection diversity combining in α−κ−μ fading environments

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