Performance Evaluation of a Selection Combining Scheme for the Hybrid FSO/RF System

Shakir, Wafaa Mohammed Ridha

doi:10.1109/jphot.2017.2771411

Cited by 56 publications

(33 citation statements)

References 15 publications

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“…To improve the BER performance, hybrid FSO/RF systems are investigated in [3, 13–15] for single‐hop (SH) system, where RF link transmits simultaneously with the FSO link. In [13–15], selection combining (SC) scheme is used, whereas in [3] both SC and maximal ratio combining (MRC) are used to combine the data of the FSO and RF links at the destination. Similarly in [16, 17], hybrid FSO/RF systems with simultaneous transmission using FSO and RF links are investigated for dual‐hop (DH) and multi‐hop scenarios, respectively.…”

Section: Introductionmentioning

confidence: 99%

Performance optimisation for dual‐hop hybrid FSO/RF system with selection combining

Sharma

Madhukumar

Swaminathan

2020

IET Optoelectronics

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Section: Introductionmentioning

confidence: 99%

Performance optimisation for dual‐hop hybrid FSO/RF system with selection combining

Sharma

Madhukumar

Swaminathan

2020

IET Optoelectronics

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“…Dual FSO threshold scheme was also discussed which is effective to avoid frequent switching when the weather conditions change rapidly. In [10], performance was evaluated using the selective combining (SC) technique for the hybrid system. Authors in [11] have proposed a rate less coding scheme using off-the-shelf Raptor code in hybrid FSO/RF system.…”

Section: Introductionmentioning

confidence: 99%

“…For simplicity, it is assumed that at least one link remains active at a certain time and the system does not interrupt the total Hybrid FSO/RF link. As one link remains active at a time, the transmitter will have to consume less power and receiver design would be simpler as it will not require any combination techniques to extract data like in [9,10]. Figure 1 portrays the basic idea of the hybrid system while Figure 2 shows the state transition diagram for this hard-switching between FSO and RF link of the Hybrid FSO/RF system under consideration.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels

et al. 2019

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The hybrid system of free space optic (FSO) and radio frequency (RF) has come forth as alternative good solution for increasing demand for high data rates in wireless communication networks. In this paper, wireless networks with hard-switching between FSO and RF link are analyzed, assuming that at a certain time point either one of the two links are active, with FSO link having higher priority. As the signal-to-noise ratio (SNR) of FSO link falls below a certain selected threshold, the RF link is activated. In this work, it is assumed that the FSO link follows Gamma-Gamma fading due to the atmospheric turbulence effect whereas RF link experiences Rayleigh fading. To analyze the proposed hybrid model, analytical expressions are derived for the outage probability, bit error rate and ergodic capacity. A numerical comparison is also done between the performances of the proposed hybrid FSO/RF model and the single FSO model.

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“…This hybrid transmission system has two switching configurations, soft and hard. In soft switching, both links are active at the same time [7]- [9]. Whereas in hard switching, only one link is active at a time [10]- [12].…”

Section: Introductionmentioning

confidence: 99%

On the Performance Analysis of Decode-and-Forward Multi-Hop Hybrid FSO/RF Systems With Hard-Switching Configuration

Alathwary

Altubaishi

2019

IEEE Photonics J.

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In this paper, we introduce a decode-and-forward multi-hop hybrid free-space optical/radio frequency (FSO/RF) system. The FSO link is assumed to follow Gamma-Gamma distribution with the combined effects of pointing errors and path loss under intensity modulation with direct detection technique, and the RF link is assumed to follow Nakagamim distribution. In particular, we derive closed-form expressions for the outage probability and ergodic capacity and analyze the system performance under the effect of different weather conditions in addition to the effect of pointing errors. The results show that the multi-hop hybrid system improves the performance even under adverse weather conditions and strong pointing errors. Furthermore, Monto Carlo simulations are provided for validation.

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Performance Evaluation of a Selection Combining Scheme for the Hybrid FSO/RF System

Cited by 56 publications

References 15 publications

Performance optimisation for dual‐hop hybrid FSO/RF system with selection combining

Performance optimisation for dual‐hop hybrid FSO/RF system with selection combining

Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels

On the Performance Analysis of Decode-and-Forward Multi-Hop Hybrid FSO/RF Systems With Hard-Switching Configuration

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