Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel

Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel

In this paper, optical code division multiple access (OCDMA) based hybrid free-space optical (FSO)/fiber wiretap channel is proposed, and the physical-layer security is analyzed theoretically, using the conditional secrecy outage probability as the performance metric. Taking into account the backgro...

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Bibliographic Details
Main Authors: Jianhua Ji, Qian Huang, Xuemei Chen, Lu Sun
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
Subjects:
Free-space optical communications
optical code division multiple access
physical-layer security
secrecy outage probability
Online Access:https://ieeexplore.ieee.org/document/8695830/
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spelling doaj-450b50d8926a4f6188cedf6903d4d6392021-03-29T17:52:19ZengIEEEIEEE Photonics Journal1943-06552019-01-0111312010.1109/JPHOT.2019.29129658695830Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap ChannelJianhua Ji0Qian Huang1https://orcid.org/0000-0003-3591-6724Xuemei Chen2Lu Sun3Shenzhen Key Lab of Communication and Information Processing, College of Information Engineering, Shenzhen University, Shenzhen, ChinaShenzhen Key Lab of Communication and Information Processing, College of Information Engineering, Shenzhen University, Shenzhen, ChinaShenzhen Key Lab of Communication and Information Processing, College of Information Engineering, Shenzhen University, Shenzhen, ChinaShenzhen Key Lab of Communication and Information Processing, College of Information Engineering, Shenzhen University, Shenzhen, ChinaIn this paper, optical code division multiple access (OCDMA) based hybrid free-space optical (FSO)/fiber wiretap channel is proposed, and the physical-layer security is analyzed theoretically, using the conditional secrecy outage probability as the performance metric. Taking into account the background noise, multiple-access interference, shot noise, and thermal noise, the closed expression of the conditional secrecy outage probability is obtained. Under the condition that the eavesdropper intercepts information on the fiber link and the minimum conditional secrecy outage probability is zero, the safe transmission distance and interception distance of the system are defined and studied. Furthermore, a 10-Gb/s experimental system of OCDMA-based hybrid FSO/fiber wiretap channel is built for the first time. The bit error rates of the legitimate user and eavesdropper are measured as well as the interception distance of the system.https://ieeexplore.ieee.org/document/8695830/Free-space optical communicationsoptical code division multiple accessphysical-layer securitysecrecy outage probability
collection DOAJ
language English
format Article
sources DOAJ
author Jianhua Ji
Qian Huang
Xuemei Chen
Lu Sun
spellingShingle Jianhua Ji
Qian Huang
Xuemei Chen
Lu Sun
Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
IEEE Photonics Journal
Free-space optical communications
optical code division multiple access
physical-layer security
secrecy outage probability
author_facet Jianhua Ji
Qian Huang
Xuemei Chen
Lu Sun
author_sort Jianhua Ji
title Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
title_short Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
title_full Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
title_fullStr Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
title_full_unstemmed Performance Analysis and Experimental Investigation of Physical-Layer Security in OCDMA-Based Hybrid FSO/Fiber Wiretap Channel
title_sort performance analysis and experimental investigation of physical-layer security in ocdma-based hybrid fso/fiber wiretap channel
publisher IEEE
series IEEE Photonics Journal
issn 1943-0655
publishDate 2019-01-01
description In this paper, optical code division multiple access (OCDMA) based hybrid free-space optical (FSO)/fiber wiretap channel is proposed, and the physical-layer security is analyzed theoretically, using the conditional secrecy outage probability as the performance metric. Taking into account the background noise, multiple-access interference, shot noise, and thermal noise, the closed expression of the conditional secrecy outage probability is obtained. Under the condition that the eavesdropper intercepts information on the fiber link and the minimum conditional secrecy outage probability is zero, the safe transmission distance and interception distance of the system are defined and studied. Furthermore, a 10-Gb/s experimental system of OCDMA-based hybrid FSO/fiber wiretap channel is built for the first time. The bit error rates of the legitimate user and eavesdropper are measured as well as the interception distance of the system.
topic Free-space optical communications
optical code division multiple access
physical-layer security
secrecy outage probability
url https://ieeexplore.ieee.org/document/8695830/
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