On performance analysis of hybrid FSO/RF systems

Shakir, Wafaa Mohammed Ridha

doi:10.1049/iet-com.2018.5147

Cited by 22 publications

(11 citation statements)

References 48 publications

(48 reference statements)

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“…We derive the outage probability for hybrid FSO/RF system taking both atmospheric turbulence and pointing errors into account in the same way as done for the case without pointing errors in Section 3.1. For f γ FSO + γ RF (x), we substitute (11) and (17) into (8) to obtain…”

Section: Outage Probabilitymentioning

confidence: 99%

“…In [14][15][16], the performance of DH amplify-and-forward (AF) relaying system comprising of a mixed RF/FSO link with the FSO link as the last mile connectivity was investigated. In [3,17], and [18], the performance analysis of various diversity-combiningbased hybrid FSO/RF systems was investigated. Here, both FSO and RF links transmit simultaneously all the time.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, in [19], parallel hybrid FSO/RF relay channel was considered and throughput maximisation was carried out using the optimal relay selection scheme. The drawback in the system models considered in [3,[17][18][19] is that the RF link stays active even when the FSO link has a good transmission quality, which means that the RF transmission power is wasted in this scenario. In addition, the data rate of FSO link is also reduced to that of the RF link due to diversity combining employed at destination.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of adaptive combining based hybrid FSO/RF terrestrial communication

et al. 2020

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This study deals with the performance analysis of adaptive combining-based hybrid free-space optics (FSO)/radiofrequency (RF) system in a terrestrial communication scenario with and without pointing errors. Here, outage probability and average symbol error rate (SER) are used as the performance metrics. Adaptive combining is a switching scheme in which the FSO link is active throughout, whereas the RF link is activated based on the transmission reliability of the FSO link and maximal-ratio-combining (MRC) of RF and FSO links is performed at the destination. The small-scale fading in RF and atmospheric turbulence induced fading in FSO links have been characterised by Nakagami-m and Gamma-Gamma distributions, respectively. In addition, the radial displacement between the beam centre and detector centre, which induces pointing errors, is modelled using Rayleigh distribution. The exact closed form expressions for the outage and average SER have been derived along with their corresponding asymptotic expressions. Diversity gain of the system has also been determined using the asymptotic expressions. Further, the variation in the performance of the system has been analysed with respect to various parameters including link distance, fading severity parameter, average signal-to-noise of the RF link, and the pointing errors parameter.

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Section: Outage Probabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance analysis of adaptive combining based hybrid FSO/RF terrestrial communication

et al. 2020

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“…Hybrid free-space optical/radio frequency (FSO/RF) communication is one proposed approach to improve the reliability and availability of the FSO link by enabling the benefits of both technologies [5]- [6]. The overarching idea of the hybrid FSO/RF system is to transmit identical signals simultaneously over both links and combining the received signals using one diversity combining technique.…”

Section: Introductionmentioning

confidence: 99%

Physical Layer Security Performance Analysis of Hybrid FSO/RF Communication System

Shakir

2021

IEEE Access

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“…To overcome the aforementioned shortage and to extend the application of FSO systems, an asymmetry hybrid RF-FSO system has been proposed in the open literature, as it can take the full advantages of both RF and FSO techniques simultaneously, such as long transmission distance and large capacity [3]- [6]. The authors in [3] proposed a parallel hybrid FSO-RF communication system, in which the information signal was transmitted to a destination simultaneously through both FSO and RF links, and a selection combining scheme was employed at the receiver to process those signals. In addition, the unified performance, i.e., bit error rate (BER), outage probability (OP), and ergodic capacity (EC), was evaluated.…”

Section: Introductionmentioning

confidence: 99%

Secrecy Analysis for Multi-Relaying RF-FSO Systems With a Multi-Aperture Destination

Zhang

Pan

et al. 2020

IEEE Photonics J.

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In this paper, we investigate the physical layer security for an asymmetric dual-hop radio frequency-free space optical (RF-FSO) communication system, in which a source transmits information to a multi-aperture destination (D) through a best relay under the wiretapping of a multi-aperture eavesdropper (E). The best relay is selected by a partial relay selection scheme in terms of maximum instantaneous channel gain for the RF link. Moreover, equal gain combining scheme is also used to process the multiple copies of receiving signal at D and E. Assuming all the RF channels are subject to independent and identical distributed (i.i.d.) Nakagami-m fading and all the FSO channels are modeled by i.i.d. Gamma-Gamma process, the secrecy performance in terms of secrecy outage probability and the probability of strictly positive secrecy capacity are studied, and the accuracy of the analytical results is verified by Monte-Carlo simulations.

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On performance analysis of hybrid FSO/RF systems

Cited by 22 publications

References 48 publications

Performance analysis of adaptive combining based hybrid FSO/RF terrestrial communication

Performance analysis of adaptive combining based hybrid FSO/RF terrestrial communication

Physical Layer Security Performance Analysis of Hybrid FSO/RF Communication System

Secrecy Analysis for Multi-Relaying RF-FSO Systems With a Multi-Aperture Destination

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