On the Performance Analysis of Dual-Hop Mixed FSO/RF Systems

Zedini, Emna; Soury, Hamza; Alouini, Mohamed‐Slim

doi:10.1109/twc.2016.2524685

Cited by 186 publications

(126 citation statements)

References 38 publications

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“…The generalized expression of average BER for a list of binary digital carrier modulation can be expressed as in the work of Zedini et al as

P_{e} = \frac{1}{2 normalΓ false(a false)} true \int_{0}^{\infty} normalΓ false(a, b γ false) f_{γ} false(γ false) d γ,

where the constants a and b denote different modulation schemes as given in the aforementioned work as in Table .…”

Section: Performance Evaluation Of Hybrid Rf/vlc Systemmentioning

confidence: 99%

“…The generalized expression of average BER for a list of binary digital carrier modulation can be expressed as in the work of Zedini et al 21 as…”

Section: Average Bermentioning

confidence: 99%

“…where the constants a and b denote different modulation schemes as given in the aforementioned work 21 as in Table 1. Average BER of RF system: The closed-form expression of average BER for RF system can be derived by substituting (1) in (14) and using the identity eq.…”

Section: Average Bermentioning

confidence: 99%

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Hard switching‐based hybrid RF/VLC system and its performance evaluation

Gupta

Garg

Sharma

2018

Trans Emerging Tel Tech

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In this paper, we investigate the performance of hard switching‐based radio frequency/visible light communication (RF/VLC) downlink system, for indoor wireless communication system. The proposed system exploits the advantages of VLC and RF system, ie, high data rate transmission by VLC and pervasive coverage by RF. The indoor RF link is considered to be Nakagami‐m fading channel while the VLC links are subjected to statistical channel model based on the uniformly distributed end user position. In this paper, we study the performance of hybrid RF/VLC system in terms of outage probability, average bit error rate, ergodic capacity, packet error rate, and throughput. Furthermore, we compare the results of proposed RF/VLC system with stand‐alone VLC system to prove its effectiveness. The results prove that, for lower values of average signal‐to‐noise ratio, the proposed system outperforms the stand‐alone VLC system.

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“…The generalized expression of average BER for a list of binary digital carrier modulation can be expressed as in the work of Zedini et al as

P_{e} = \frac{1}{2 normalΓ false(a false)} true \int_{0}^{\infty} normalΓ false(a, b γ false) f_{γ} false(γ false) d γ,

where the constants a and b denote different modulation schemes as given in the aforementioned work as in Table .…”

Section: Performance Evaluation Of Hybrid Rf/vlc Systemmentioning

confidence: 99%

“…The generalized expression of average BER for a list of binary digital carrier modulation can be expressed as in the work of Zedini et al 21 as…”

Section: Average Bermentioning

confidence: 99%

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Hard switching‐based hybrid RF/VLC system and its performance evaluation

Gupta

Garg

Sharma

2018

Trans Emerging Tel Tech

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show abstract

“…Now, integrating using eq 8 from Munot, 29 we obtain the expression for the MGF of SNR measured end-to-end, as given in (14).…”

Section: Proposition 2 the Mgf Of The Snr Measured End-to-end For Thmentioning

confidence: 99%

“…The end-to-end performance of a multiuser dual-hop decode and forward (DF) relaying system over mixed RF-FSO links is studied in Miridakis et al 10 The error performance of a fixed gain amplify-and-forward (AF) relay-assisted dual-hop mixed RF-FSO system with the RF link being Nakagami-m distributed and the FSO link characterised by gamma-gamma distribution is studied in Zedini et al 11 and Anees and Bhatnagar. 12 Other recent related works on mixed/hybrid RF-FSO systems and references therein can be found in Kong et al 13 and Zedini et al 14 A fixed-gain AF relaying protocol is simpler to implement as the channel state information (CSI) of the previous hop is not required. But it leads to variation in the signal power transmitted from the relay, because of its fixed gain.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of a variable‐gain amplify‐and‐forward relayed mixed RF‐FSO system

Khanna

Aggarwal

Ahuja

2017

Int J Communication

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SummaryIn this work, an amplify-and-forward variable-gain relayed mixed RF-FSO system is studied. The considered dual-hop system consists of a radio frequency (RF) link followed by a free space optical (FSO) channel. The RF link is affected by short-term multipath fading and long-term shadowing effects and is assumed to follow the generalized-K fading distribution that approximates accurately several important distributions often used to model communication channels.The FSO channel experiences fading caused by atmospheric turbulence that is modeled by the gamma-gamma distribution characterizing moderate and strong turbulence conditions. The FSO channel also suffers path loss and pointing error induced misalignment fading. The performance of the considered system is analyzed under the collective influence of distribution shaping parameters, pointing errors that result in misalignment fading, atmospheric turbulence, and path loss. The moment-generating function of the Signal power to noise power ratio measured end-to-end for this system is derived. The cumulative distribution function for the Signal power to noise power ratio present between the source and destination receiver is also evaluated. Further, we investigate the error and outage performance and the average channel capacity for this system. The analytical expressions in closed form for the outage probability, symbol and bit error rate considering different modulation schemes and channel capacity are also derived. The mathematical expressions obtained are also demonstrated by numerical plots. KEYWORDSchannel capacity, fading, free space optical communication, probability of outage, radio frequency communication, symbol error rate

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Diversity aided millimeter‐wave/free space optical cooperative relaying systems

Goel

Upadhya

Dwivedi

2021

Int J Communication

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In this paper, we investigate the performance of mixed millimeter-wave (mmWave)/multiple input multiple output (MIMO)-free space optics (FSO) cooperative relaying system. The mmWave link is assumed to undergo multipath fading and shadowing which has been modeled as generalized-K distributed fading, whereas the diversity aided FSO link is considered to experience Gamma-Gamma turbulence. We consider amplify-and-forward (AF) relaying strategy and multiple signals arriving at the receiver are combined using equal gain combining (EGC) scheme. Analytical closed form expressions for performance metrics such as outage probability, bit error rate (BER), and the ergodic channel capacity are derived in terms of bivariate Fox's H-function for the considered mixed mmWave/MIMO-FSO relaying system. In order to further simplify the obtained results, we analyze the system performance for the case of high signal-to-noise ratio (SNR) to present the asymptotic expressions for the outage probability and BER in terms of elementary functions. To this end, we have formulated an optimum power allocation scheme which minimizes the probability of outage experienced by the end user by allocating the optimum power on the FSO link. We also analyze the proposed system for the impact of pointing errors in a separate section by deriving closed-form expressions for the outage probability and BER. Finally, numerical results have been demonstrated the findings of the research work which have supplemented by Monte Carlo simulations.

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On the Performance Analysis of Dual-Hop Mixed FSO/RF Systems

Cited by 186 publications

References 38 publications

Hard switching‐based hybrid RF/VLC system and its performance evaluation

Hard switching‐based hybrid RF/VLC system and its performance evaluation

Performance analysis of a variable‐gain amplify‐and‐forward relayed mixed RF‐FSO system

Diversity aided millimeter‐wave/free space optical cooperative relaying systems

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