Physical-Layer Security Against Known/Chosen Plaintext Attacks for OFDM-Based VLC System

Al‐Moliki, Yahya M.; Alresheedi, Mohammed T.; Al‐Harthi, Yahya

doi:10.1109/lcomm.2017.2747512

Cited by 40 publications

(21 citation statements)

References 16 publications

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“…where λ = (m + 1) A r T s gl m+1 /2π , and r k denotes the distance between the projection point O and Bob or Eve. According to (4) and (6), the received optical power at Eve can be given by…”

Section: System Modelmentioning

confidence: 99%

“…According to (6) and (39), the PDF of H E can be further expressed as Then, according to (14) and (40), the PDF of J E can be given by…”

Section: A Statistical Characteristic Analysismentioning

confidence: 99%

“…To improve the PHY security, a channel determined subcarrier shifting scheme was proposed in [5] for orthogonal frequency division multiplexing (OFDM) based VLC. In [6], a chaos based PHY security method was introduced for the OFDM based VLC systems with the capacity against known/chosen plaintext attacks. In [7], optimal and robust secure beamforming schemes were proposed to improve PHY security for multiple-input single-output VLC.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis and Improvement for Secure VLC With SLIPT and Random Terminals

et al. 2020

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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. INDEX TERMS Visible light communications, physical-layer security, secrecy outage probability, average secrecy capacity, SLIPT, random terminals, protected zone.

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Section: System Modelmentioning

confidence: 99%

“…According to (6) and (39), the PDF of H E can be further expressed as Then, according to (14) and (40), the PDF of J E can be given by…”

Section: A Statistical Characteristic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Analysis and Improvement for Secure VLC With SLIPT and Random Terminals

et al. 2020

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“…In [18], a secure VLC system using light-panel and mobile-phone image sensor was demonstrated, where the security was achieved by employing a specially developed mobile-phone application program (APP). Specifically, chaotic encryption based physical-layer security enhancement techniques have also been applied in VLC systems [19,20]. In addition to VLC, the near-infrared wavelength band has also been widely studied to provide indoor wireless access to end users [21,22].…”

Section: Introductionmentioning

confidence: 99%

Secure and private NOMA VLC using OFDM with two-level chaotic encryption

Yang¹,

Chen²,

Zhang³

et al. 2018

Opt. Express

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In this paper, we propose and demonstrate a secure and private non-orthogonal multiple access (NOMA) based visible light communication (VLC) system. Orthogonal frequency division multiplexing (OFDM) modulation is applied in the system and a two-level chaotic encryption scheme is further implemented, which can guarantee both the security of legitimate users against eavesdroppers and the privacy among all the legitimate users. An experimental demonstration with two legitimate users and one eavesdropper successfully verifies the feasibility of the proposed secure and private NOMA VLC system. To the best of our knowledge, it is the first time that simultaneous security and privacy improvement is considered for NOMA VLC systems.

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“…To improve the PHY security, a channel determined subcarrier shifting scheme is proposed in [18] for orthogonal frequency division multiplexing (OFDM) based VLC. In [19], a chaos based PHY security method is introduced for the OFDM based VLC systems with the capacity against known/chosen plaintext attacks. In [20]- [22], the optimal beamforming and robust beamforming schemes are proposed for secure VLC.…”

mentioning

confidence: 99%

Tradeoff Between Secrecy Capacity and Harvested Energy for Secure Visible Light Communications With SWIPT

et al. 2019

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By considering the threefold roles of indoor visible light communications (VLC), i.e., illumination, secure information transmission, and light power transfer, the tradeoff between the secrecy capacity (SC) and the harvested energy (HE) is investigated in this paper. An indoor VLC system consisting of a transmitter, a legitimate receiver, and an eavesdropper is established. The legitimate receiver can perform secure information transmission and light power transfer simultaneously, while the eavesdropper is just an information eavesdropping receiver. Under the non-negativity and the dimmable average optical intensity constraint, a lower bound of the average SC is derived. By employing the dynamic power splitting (DPS) for the legitimate receiver, the closed-form expression of the average HE is obtained. After that, the SC-HE region for the DPS receiver is constructed. As the variants of the DPS receiver, the time switching (TS), static power splitting (SPS) and on-off power splitting (OPS) receivers are provided, and the corresponding SC-HE regions are also obtained. As a benchmark, the performance upper bound of the SC-HE region for any practical receiver is derived. The simulation results show that the performance of the OPS receiver always outperforms that of the other receivers. The DPS and SPS receivers achieve the same performance. The TS receiver is the worst receiver when HE is small, but it is the best receiver when HE is large. Moreover, the impacts of the dimming target, the estimated error, signal processing noise, and the nominal optical intensity on system performance are discussed. INDEX TERMS Visible light communications, secrecy capacity, harvested energy, light power transfer. I. INTRODUCTION

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Physical-Layer Security Against Known/Chosen Plaintext Attacks for OFDM-Based VLC System

Cited by 40 publications

References 16 publications

Performance Analysis and Improvement for Secure VLC With SLIPT and Random Terminals

Performance Analysis and Improvement for Secure VLC With SLIPT and Random Terminals

Secure and private NOMA VLC using OFDM with two-level chaotic encryption

Tradeoff Between Secrecy Capacity and Harvested Energy for Secure Visible Light Communications With SWIPT

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