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Lecture notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

Secrecy Outage Probability Analysis for Indoor Visible Light Communications with Random Terminals

Hong Ge, Jianxin Dai

Published Jan 1, 2019• 1 citation
Publisher
DOI
10.1007/978-3-030-36405-2_31

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A Secure Link Adaptation in an Indoor Heterogeneous VLC/RF Network

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In this paper, we consider an indoor environment where both visible light communication (VLC) and radio frequency (RF) networks are co-deployed. A source transmitter can use either a VLC-link or a RF-link to transmit the information to the legitimate user and we assume that an eavesdropper is also present to intercept the legitimate information transmission. Here, VLC network is considered as a primary network and RF network is used as a backup. Therefore, a source transmitter utilizes the RF-link only when VLC-link offers negative secrecy-rate for legitimate information transmission. In particular, we propose a secrecy-rate based secure link adaptation mechanism to select the RF-link. We derive the exact closed-form expressions for secrecy outage probability and system secrecy outage probability, and further, observe the effect of various physical parameters on security performance analysis.

•Mar 1, 2019•1 citation
This paper investigates the physical-layer data secure transmission for indoor visible light communications (VLC) with simultaneous wireless information and power transfer (SWIPT) and random terminals. A typical indoor VLC system including one transmitter, one desired information receiver and one energy receiver is considered. The two receivers are randomly deployed on the floor, and the random channel characteristics is analyzed. Based on the possibility that the energy receiver is a passive information eavesdropper, the secrecy outage probability (SOP) is employed to evaluate the system performance. A closed-from expression for the lower bound of the SOP is obtained. For the derived lower bound of SOP, the theoretical results match the simulation results very well, which indicates that the derived lower bound can be used to evaluate the secrecy performance. Moreover, the gap between the results of the lower bound and the exact simulation results is also small, which verifies the correctness of the analysis method to obtain the lower bound.
This paper investigates the physical-layer data secure transmission for indoor visible light communications (VLC) with simultaneous lightwave information and power transfer (SLIPT) and random terminals. A typical indoor VLC system including one transmitter, one desired information receiver and one energy receiver is considered. The two receivers are randomly deployed on the floor, and the random channel characteristics is analyzed. Based on the possibility that the energy receiver is a passive information eavesdropper, the secrecy outage probability (SOP) and the average secrecy capacity (ASC) are employed to evaluate the system performance. A closed-form expression for the lower bound of the SOP and an exact closed-form expression for the ASC are derived, respectively. To further improve the physical-layer security, a protected zone based scheme is proposed, and then the SOP and the ASC are re-derived. By using Monte-Carlo simulations, the accuracy of the derived lower bound of SOP and the exact ASC are verified. Moreover, numerical results show that the security of the VLC system significantly improves by employing the protected zone.
In this paper, we consider an indoor environment where both visible light communication (VLC) and radio frequency (RF) networks are co-deployed. A source transmitter can use either a VLC-link or a RF-link to transmit the information to the legitimate user and we assume that an eavesdropper is also present to intercept the legitimate information transmission. Here, VLC network is considered as a primary network and RF network is used as a backup. Therefore, a source transmitter utilizes the RF-link only when VLC-link offers negative secrecy-rate for legitimate information transmission. In particular, we propose a secrecy-rate based secure link adaptation mechanism to select the RF-link. We derive the exact closed-form expressions for secrecy outage probability and system secrecy outage probability, and further, observe the effect of various physical parameters on security performance analysis.