On Secrecy Performance of Mixed RF-FSO Systems

Hongjiang Lei; Zhijun Dai; Imran Shafique Ansari; Ki Hong Park; Gaofeng Pan; Mohamed Slim Alouini

doi:10.1109/JPHOT.2017.2723422

On Secrecy Performance of Mixed RF-FSO Systems

Hongjiang Lei^*, Zhijun Dai, Imran Shafique Ansari, Ki Hong Park, Gaofeng Pan, Mohamed Slim Alouini

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

112 Citations (Scopus)

Abstract

In this paper, we study the secrecy performance of a mixed radio frequency-free space optical (RF-FSO) transmission systems. All RF links experience Nakagami-m fading and the FSO link experiences the Gamma-Gamma fading. The effect of pointing error and two types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) are considered. We derive closed-form expressions for lower bound of the secrecy outage probability (SOP) and exact average secrecy capacity (ASC). Furthermore, by utilizing the expansion of Meijer's G-function, asymptotic results for SOP and ASC are derived when the electrical signal-to-noise ratio of the FSO link tends to infinity. Numerical and Monte Carlo simulation results are provided to verify the accuracy of our proposed results.

Original language	English
Article number	7968415
Journal	IEEE Photonics Journal
Volume	9
Issue number	4
DOIs	https://doi.org/10.1109/JPHOT.2017.2723422
Publication status	Published - Aug 2017
Externally published	Yes

Keywords

Gamma-Gamma fading
Physical layer security
average secrecy capacity
mixed radio frequency-free space optical (RF-FSO) systems
secrecy outage probability

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10.1109/JPHOT.2017.2723422

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title = "On Secrecy Performance of Mixed RF-FSO Systems",

abstract = "In this paper, we study the secrecy performance of a mixed radio frequency-free space optical (RF-FSO) transmission systems. All RF links experience Nakagami-m fading and the FSO link experiences the Gamma-Gamma fading. The effect of pointing error and two types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) are considered. We derive closed-form expressions for lower bound of the secrecy outage probability (SOP) and exact average secrecy capacity (ASC). Furthermore, by utilizing the expansion of Meijer's G-function, asymptotic results for SOP and ASC are derived when the electrical signal-to-noise ratio of the FSO link tends to infinity. Numerical and Monte Carlo simulation results are provided to verify the accuracy of our proposed results.",

keywords = "Gamma-Gamma fading, Physical layer security, average secrecy capacity, mixed radio frequency-free space optical (RF-FSO) systems, secrecy outage probability",

author = "Hongjiang Lei and Zhijun Dai and Ansari, {Imran Shafique} and Park, {Ki Hong} and Gaofeng Pan and Alouini, {Mohamed Slim}",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

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month = aug,

doi = "10.1109/JPHOT.2017.2723422",

language = "English",

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journal = "IEEE Photonics Journal",

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AU - Lei, Hongjiang

AU - Dai, Zhijun

AU - Ansari, Imran Shafique

AU - Park, Ki Hong

AU - Pan, Gaofeng

AU - Alouini, Mohamed Slim

PY - 2017/8

Y1 - 2017/8

N2 - In this paper, we study the secrecy performance of a mixed radio frequency-free space optical (RF-FSO) transmission systems. All RF links experience Nakagami-m fading and the FSO link experiences the Gamma-Gamma fading. The effect of pointing error and two types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) are considered. We derive closed-form expressions for lower bound of the secrecy outage probability (SOP) and exact average secrecy capacity (ASC). Furthermore, by utilizing the expansion of Meijer's G-function, asymptotic results for SOP and ASC are derived when the electrical signal-to-noise ratio of the FSO link tends to infinity. Numerical and Monte Carlo simulation results are provided to verify the accuracy of our proposed results.

AB - In this paper, we study the secrecy performance of a mixed radio frequency-free space optical (RF-FSO) transmission systems. All RF links experience Nakagami-m fading and the FSO link experiences the Gamma-Gamma fading. The effect of pointing error and two types of detection techniques (i.e., heterodyne detection and intensity modulation with direct detection) are considered. We derive closed-form expressions for lower bound of the secrecy outage probability (SOP) and exact average secrecy capacity (ASC). Furthermore, by utilizing the expansion of Meijer's G-function, asymptotic results for SOP and ASC are derived when the electrical signal-to-noise ratio of the FSO link tends to infinity. Numerical and Monte Carlo simulation results are provided to verify the accuracy of our proposed results.

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KW - Physical layer security

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On Secrecy Performance of Mixed RF-FSO Systems

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Keywords

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