A New Eavesdropping-Resilient Framework for Indoor Visible Light Communication

Liu, Xiangyu; Wei, Xuetao; Guo, Lei; Liu, Yejun; Zhou, Yufang

doi:10.1109/glocom.2016.7841521

Cited by 11 publications

(7 citation statements)

References 16 publications

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“…where , is the ℎ element of , and is the code rate of the channel coder that encodes . The key is exploited to encrypt ̂+ during the next frame, with index ( + 1) th , using (15). After the total OFDM signal is generated from and , the third sequence , is employed for timedomain permutation of the OFDM samples .…”

Section: System Designmentioning

confidence: 99%

“…The random feature of the input data is exploited to create dynamic cyphertexts. From (15), (21), (23), and Fig. 5, to detect the current OFDM frame S ( ), with index th , Eavesdropper requires to detect the previous OFDM frame S −1 ( ), with index ( − 1) th , to generate − which was employed to encrypt and spread the current OFDM frame S ( ), accordingly, the complete historical OFDM signals are required to detect the subsequent signal.…”

Section: System Designmentioning

confidence: 99%

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Improving Availability and Confidentiality via Hyperchaotic Baseband Frequency Hopping Based on Optical OFDM in VLC Networks

2020

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The security in visible-light communication (VLC) networks has recently gained attention. This work presents a hyperchaotic baseband frequency hopping method based on optical orthogonal frequency-division multiplexing (Hyperchaos-BB-FH-OOFDM) that can enhance both confidentiality and availability in VLC networks. A four-dimensional hyperchaotic scheme is employed for chaotic mapping. The proposed method exploits the random feature of the input data and chaotic codes to improve the confidentiality against correlation and statistical attacks and to improve the availability against illumination, disguised, and noise jamming. Using the chaotic scheme, the bipolar real OFDM samples are exploited to create dynamic cypher keys and spreading codes that are updated at each frame throughout the entire session, leading to high security against malicious attacks. The proposed method employs a four-fold encryption approach that involves chaotic frequency/time-domain scrambling of OFDM subcarriers, chaotic phase scrambling of frequency-domain subcarriers, and chaotic spreading of the OFDM signals upon transmission. According to the results, in addition to enhancing the confidentiality and availability, the method supports multiplexing, reduces the peak-to-average-power ratio of the OFDM signal, and improves the bit error rate performance for OFDM-based VLC networks.

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Section: System Designmentioning

confidence: 99%

Section: System Designmentioning

confidence: 99%

Improving Availability and Confidentiality via Hyperchaotic Baseband Frequency Hopping Based on Optical OFDM in VLC Networks

2020

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“…In our preliminary work [24], we proposed a random time reversal scheme for both SISO-VLC and MISO-VLC systems, and only discussed the impact of channel correlation on the VLC security.…”

Section: A Vlc Securitymentioning

confidence: 99%

“…In our preliminary work [24], we proposed a random time reversal scheme for both SISO-VLC and MISO-VLC systems, and only discussed the impact of channel correlation on the VLC security. Here, we significantly extend the work by: a) modeling and analyzing the impact of channel estimation error on the VLC security, b) analyzing and calculating the secrecy capacity under time-varying error and additive noise error, and c) re-thinking the equivalent artificial noise method to improve the system secrecy capacity with the considerations of both average and peak light intensity constraints.…”

Section: Introductionmentioning

confidence: 99%

<italic>SecLight:</italic> A New and Practical VLC Eavesdropping-Resilient Framework for IoT Devices

et al. 2019

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The blooming of the Internet of Things (IoT) needs a communication infrastructure to allow connecting a wide range of devices. Visible light communication (VLC) provides an attractive solution for these IoT devices. However, the broadcast nature makes the VLC prone to be exposed in the reach of eavesdroppers, which undesirably impairs the IoT system security. The negative factors in practical use, such as light reflection, light intensity, channel correlation, and channel estimation error, remain less touched. In this paper, we propose the SecLight to support both the multiple-input single-output VLC (MISO-VLC) and the single-input single-output VLC (SISO-VLC) IoT devices. A random time reversal scheme is first proposed to automatically steer the SISO-VLC signal to the legitimate receivers by scrambling the eavesdropper's channel. Then, we mathematically analyze the impact of channel correlation and channel estimation error inherent in MISO-VLC system and propose an effective approach to alleviate the decreased secrecy capacity by introducing the Karhunen-LoEve transform and equivalent artificial noise. Through extensive evaluation, the proposed SecLight framework proves to be able to aggravate the bit error rate of eavesdroppers, even when a malicious interception is intended while holding the secrecy capacity above 3 bit/s/Hz. Overall, our results demonstrate that our framework SecLight is a promising solution for enhancing the security of the IoT devices.INDEX TERMS Visible light communication, physical layer, security.

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“…Authors of [47] focused their work on the effect of the reflected in a MISO-VLC network and proposed an eavesdropping-resilient framework. In [48], authors showed that a small gap under the door, keyholes, or the window can be sufficient sources for eavesdropping.…”

Section: Pls In Vlc Systemsmentioning

confidence: 99%

Survey on Physical Layer Security in Optical Wireless Communication Systems

Obeed

Salhab

Alouini

et al. 2018

2018 Seventh International Conference on Communications and Networking (ComNet)

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As the existing radio-frequency (RF) networks cannot meet the ever-increasing data rate demand, the optical wireless communication (OWC), which uses a wide untapped unregulated spectrum, has been proposed as a promising technology to overcome the RF spectrum limitations. On the other hand, with the increasing demand for high data rate and the prevalence of the broadcast-nature networks, researchers have recently come up with new mechanisms to improve secure communication using physical layer techniques. Compared to RF networks, the OWC networks are more secure and less susceptible to the interception because of the small coverage provided by LEDs, and because they work properly only in the presence of the line-of-sight (LoS) components. However, the security in OWC networks is still an issue, especially in visible light communication (VLC) when the transmitted information can be accessed by multiple users as in public areas, meeting rooms, laboratories, and libraries. That means potential eavesdroppers may be existing to gather confidential messages. This paper reviews all the conducted work on physical layer security (PLS) in two types of OWC networks, which are the VLC and free space optical (FSO) networks. Furthermore, the paper proposes several open problems in these networks to optimize and enhance the security performance.

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A New Eavesdropping-Resilient Framework for Indoor Visible Light Communication

Cited by 11 publications

References 16 publications

Improving Availability and Confidentiality via Hyperchaotic Baseband Frequency Hopping Based on Optical OFDM in VLC Networks

Improving Availability and Confidentiality via Hyperchaotic Baseband Frequency Hopping Based on Optical OFDM in VLC Networks

<italic>SecLight:</italic> A New and Practical VLC Eavesdropping-Resilient Framework for IoT Devices

Survey on Physical Layer Security in Optical Wireless Communication Systems

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