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

Shakir, Wafaa Mohammed Ridha

doi:10.1109/access.2020.3048614

Cited by 28 publications

(22 citation statements)

References 39 publications

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“…Free space optical (FSO) communication, on the other hand, allows for high-rate and low-latency transmission while being very susceptible to atmospheric conditions and adverse weather impacts [2]. Furthermore, academic, and industrial communities believe that the extremely narrow divergence of FSO beams makes a physical interception and eavesdropping exceedingly difficult [3][4][5]. In order to combine the advantages of millimeter-wave Wafaa M. R. Shakir is with the Computer Systems Department of Al-Furat Al-Awsat Technical University, Babil 51015, Iraq, (email: inb.wfa@atu.edu.iq).…”

Section: A Backgroundmentioning

confidence: 99%

Secrecy Performance Analysis of Parallel FSO/mm-wave System Over Unified Fisher-Snedecor Channels

Shakir

Alouini

2022

IEEE Photonics J.

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This paper presents a secrecy performance analysis of a parallel free-space optical/millimeter-wave (mm-wave) communication system with a selection-combining receiver over a unified Fisher-Snedecor 𝓕-distribution channel. The 𝓕distribution model, with the proper parameters, may be used to describe both the mm-wave and optical channels. The security performance is specifically evaluated by deriving closed-form expressions for the average secrecy capacity, secrecy outage probability, and strictly positive secrecy capacity. We examine the three following distinct security scenarios: 1) An FSO-link eavesdropping attack, 2) mm-wave-link eavesdropping attacks, and 3) eavesdropping attacks on FSO and mm-wave links at the same time. Furthermore, to better understand the influence of various system and channel parameters, asymptotic analysis is performed at high signal-to-noise ratio values. Our developed analytical expressions provide an efficient tool for examining the influence of various system and channel parameters on the secrecy performance, including the atmospheric turbulence severity, pointing errors of the FSO link, fading severity, the shadowing parameters, as well as the number of diversity branches of the mm-wave links. Monte-Carlo simulations are used to verify the correctness of the numerical findings.

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Section: A Backgroundmentioning

confidence: 99%

Secrecy Performance Analysis of Parallel FSO/mm-wave System Over Unified Fisher-Snedecor Channels

Shakir

Alouini

2022

IEEE Photonics J.

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“…thereafter, by using [58, (2.5.37-2)], the resultant integrals can be solved as in (36), as given in the top of next page.…”

Section: A Outage Probabilitymentioning

confidence: 99%

“…The asymptotic behavior of the outage probability for fixedgain relaying scheme, given in (36), can be obtained as follows. It is well known that the modified Bessel function of the second kind can be approximated as [59]…”

Section: B Asymptotic Outage Probability 1) Fixed-gain Relayingmentioning

confidence: 99%

Outage Analysis of Relay-Based Dual-Hop Hybrid FSO-mmWave Systems

Tokgoz¹,

Althunibat

Miller

et al. 2022

IEEE Access

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Bearing in mind the high data rate and volume requirements of 5G and beyond networks, millimeter wave (mmWave) systems can be utilized with the assistance of free-space optical (FSO) systems since both technologies exhibit distinctive behaviors under different weather conditions. Therefore, in this study, we investigate a relay-based dual-hop hybrid FSO-mmWave systems from an outage performance point of view, where the communication in each hop is established on both FSO and mmWave links simultaneously. Specifically, Nakagami-m distribution is used for mmWave fading channels, while gammagamma distribution is assumed for FSO turbulence channels. Two well-known amplify-and-forward (AF) relaying schemes are examined during data transmission, in which the power amplification operation is based on partial and full channel state information of the system, namely, fixed-gain and variable-gain AF relaying methods. The effects of fundamental system variables on the outage analysis of the relay-based hybrid transmissions are investigated by obtaining exact closed-form derivations of the outage probability and effective throughput. Based upon the results, it is shown that the proposed closed-form expressions are in good match with the Monte-Carlo simulations.

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“…In addition, a particular case of mixed fading channels (Nakagami-m/Nakagami-m) is studied corresponding to formulas of ASC, SOP and SPSC. In [26], a hybrid free-space optical/radio frequency (FSO/RF) communication system is examined in terms of the secrecy performance. Since the eavesdropper tries to overhear the RF link between the legitimate transmitter and receiver of the hybrid system, secure performance need be analysed.…”

Section: A Related Workmentioning

confidence: 99%

“…where χ = µ2α1 α2λ 2R + 1 λ 1R . Proof: From (24), C 1 can be calculated as (26), shown at the middle of the next page.…”

Section: B2mentioning

confidence: 99%

Exploiting Secrecy Performance of Uplink NOMA in Cellular Networks

Nguyen

Afghah

et al. 2021

IEEE Access

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We study the secrecy transmission of uplink non-orthogonal multiple access (NOMA) with single antenna and multi-antenna users in presence of an eavesdropper. Two phases are required for communications during each time frame between the users and the base station in cellular networks. We study the case where an eavesdropper overhears the relay and direct links from the users to the base stations. In terms of the secure performance analysis, we focus on two main metrics including secrecy outage probability (SOP) and strictly positive secrecy capacity (SPSC) with the assumption that the eavesdropper is able to detect the signals. Analytical closed-form expressions for the SOP and SPSC are derived to evaluate the system secure performance achieved by the proposed schemes. Furthermore, the asymptotic analysis is presented to gain further insights. The analytical and numerical results indicate that the proposed schemes can realize better secrecy performance once we improve the channel condition and signal-to-noise ratio (SNR) at the base station. Our results confirms that the secrecy performance gaps exist among the two users since different power allocation factors are assigned to these users.INDEX TERMS Physical layer security, non-orthogonal multiple access, secrecy outage probability, strictly positive secrecy capacity.

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

Cited by 28 publications

References 39 publications

Secrecy Performance Analysis of Parallel FSO/mm-wave System Over Unified Fisher-Snedecor Channels

Secrecy Performance Analysis of Parallel FSO/mm-wave System Over Unified Fisher-Snedecor Channels

Outage Analysis of Relay-Based Dual-Hop Hybrid FSO-mmWave Systems

Exploiting Secrecy Performance of Uplink NOMA in Cellular Networks

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