On Secure Free-Space Optical Communications Over Málaga Turbulence Channels

Saber, Mohammad Javad; Sadough, Seyed Mohammad Sajad

doi:10.1109/lwc.2017.2671872

Cited by 103 publications

(65 citation statements)

References 17 publications

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“…It was found that the information leakage takes place if the eavesdropper is located near the receiver or transmitter, without affecting the reliability of information transfer. Link security analysis for FSO system over Malaga Turbulence channels was provided in [317]. Similarly, the secrecy performance of RF/FSO system was also evaluated in [12], where the authors consider Nakagami-m fading for RF link and Gamma-Gamma fading for FSO link.…”

Section: Spectrum Extension (Mm-wave/ Fso)mentioning

confidence: 99%

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

Jameel

Wyne

Kaddoum

et al. 2019

IEEE Commun. Surv. Tutorials

228

106

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Physical layer security (PLS) has been extensively explored as an alternative to conventional cryptographic schemes for securing wireless links. Of late, the research community is actively working towards exploiting cooperative communication techniques to further improve the security. Many studies are showing that the cooperation between the legitimate nodes of a network can significantly enhance their secret communications, relative to the non-cooperative case. Motivated by the importance of this class of PLS systems, this paper provides a comprehensive survey of the recent works on cooperative relaying and jamming techniques for securing wireless transmissions against eavesdropping nodes which attempt to intercept the transmissions. First, it provides a in-depth overview of various secure relaying strategies and schemes. Next, a review of recently proposed solutions for cooperative jamming techniques has been provided with an emphasis on power allocation and beamforming techniques. Then, the latest developments in hybrid techniques, that use both cooperative relaying and jamming, are elaborated. Finally, several key challenges in the domain of cooperative security are presented along with an extensive discussion on the applications of cooperative security in key enablers for 5G communications, such as non-orthogonal multiple access (NOMA), device-to-device (D2D) communications, and massive multiple-input multipleoutput (MIMO) systems.

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Section: Spectrum Extension (Mm-wave/ Fso)mentioning

confidence: 99%

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

Jameel

Wyne

Kaddoum

et al. 2019

IEEE Commun. Surv. Tutorials

228

106

View full text Add to dashboard Cite

show abstract

“…By involving (30) into (32) and relying on probability theory and some algebraic manipulations, one obtains…”

Section: Appendix B Proof Of Lemmamentioning

confidence: 99%

A PHY Layer Security Analysis of a Hybrid High Throughput Satellite With an Optical Feeder Link

Illi

Bouanani

Ayoub³

et al. 2020

IEEE Open J. Commun. Soc.

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Hybrid terrestrial-satellite (HTS) communication systems have gained a tremendous amount of interest recently due to the high demand for global high data rates. Conventional satellite communications operate in the conventional Ku (12 GHz) and Ka (26.5-40 GHz) radio-frequency bands for assessing the feeder link, between the ground gateway and the satellite. Nevertheless, with the aim to provide hundreds of Mbps of throughput per each user, free-space optical (FSO) feeder links have been proposed to fulfill these high data rates requirements. In this paper, we investigate the physical layer security performance for a hybrid very high throughput satellite communication system with an FSO feeder link. In particular, the satellite receives the incoming optical wave from an appropriate optical ground station, carrying the data symbols of N users through various optical apertures and combines them using the selection combining technique. Henceforth, the decoded and regenerated information signals of the N users are zero-forcing (ZF) precoded in order to cancel the interbeam interference at the end-users. The communication is performed under the presence of malicious eavesdroppers nodes at both hops. Statistical properties of the signal-to-noise ratio of the legitimate and wiretap links at each hop are derived, based on which the intercept probability metric is evaluated. The derived results show that above a certain number of optical apertures, the secrecy level is not improved further. Also, the system's secrecy is improved using ZF precoding compared to the no-precoding scenario for some specific nodes' positions. All the derived analytical expressions are validated through Monte Carlo simulations. INDEX TERMS Free-space optics, high-throughput communications, hybrid terrestrial-satellite systems, intercept probability, optical feeder links, physical layer security, zero-forcing precoding.

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“…Based on an experimental FSO link testbed that consists of one transmitter, one receiver, and one eavesdropper, authors of [11] estimated the secrecy rate, secrecy outage probability, and the expected code lengths that required for achieving a predefined secrecy rate. With such system model, authors of [12] evaluated the secure performance of the FSO link with IM/DD over Malaga turbulence channels. In [13], authors derived expressions for a lower bound of the instantaneous secrecy capacity, the average secrecy capacity and its lower bound, when on-off keying (OOK) IM/DD was applied and the FSO links suffered from turbulence-induced fading.…”

Section: Pls In Fso Systemsmentioning

confidence: 99%

Survey on Physical Layer Security in Optical Wireless Communication Systems

Obeed

Salhab

Alouini

et al. 2018

2018 Seventh International Conference on Communications and Networking (ComNet)

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As the existing radio-frequency (RF) networks cannot meet the ever-increasing data rate demand, the optical wireless communication (OWC), which uses a wide untapped unregulated spectrum, has been proposed as a promising technology to overcome the RF spectrum limitations. On the other hand, with the increasing demand for high data rate and the prevalence of the broadcast-nature networks, researchers have recently come up with new mechanisms to improve secure communication using physical layer techniques. Compared to RF networks, the OWC networks are more secure and less susceptible to the interception because of the small coverage provided by LEDs, and because they work properly only in the presence of the line-of-sight (LoS) components. However, the security in OWC networks is still an issue, especially in visible light communication (VLC) when the transmitted information can be accessed by multiple users as in public areas, meeting rooms, laboratories, and libraries. That means potential eavesdroppers may be existing to gather confidential messages. This paper reviews all the conducted work on physical layer security (PLS) in two types of OWC networks, which are the VLC and free space optical (FSO) networks. Furthermore, the paper proposes several open problems in these networks to optimize and enhance the security performance.

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On Secure Free-Space Optical Communications Over Málaga Turbulence Channels

Cited by 103 publications

References 17 publications

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

A Comprehensive Survey on Cooperative Relaying and Jamming Strategies for Physical Layer Security

A PHY Layer Security Analysis of a Hybrid High Throughput Satellite With an Optical Feeder Link

Survey on Physical Layer Security in Optical Wireless Communication Systems

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