Analysis on the effects of artificial noise on physical layer security

Cepheli, Özge; Kurt, Güneş Karabulut

doi:10.1109/siu.2013.6531475

Cited by 9 publications

(3 citation statements)

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“…If the secrecy capacity falls below zero, the transmissions from the source to the destination become insecure and the eavesdropper would become capable of intercepting the source's transmissions [35], [36]. In order to improve the attainable transmission security, it is of importance to increase the secrecy capacity by exploiting sophisticated signal processing techniques, such as the artificial-noise-aided security [37]- [39], securityoriented beamforming [40], [41], security-oriented diversity approaches [42], [43] and so on.…”

Section: Introductionmentioning

confidence: 99%

A Survey on Wireless Security: Technical Challenges, Recent Advances, and Future Trends

et al. 2016

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Due to the broadcast nature of radio propagation, the wireless air interface is open and accessible to both authorized and illegitimate users. This completely differs from a wired network, where communicating devices are physically connected through cables and a node without direct association is unable to access the network for illicit activities. The open communications environment makes wireless transmissions more vulnerable than wired communications to malicious attacks, including both the passive eavesdropping for data interception and the active jamming for disrupting legitimate transmissions. Therefore, this paper is motivated to examine the security vulnerabilities and threats imposed by the inherent open nature of wireless communications and to devise efficient defense mechanisms for improving the wireless network security. We first summarize the security requirements of wireless networks, including their authenticity, confidentiality, integrity, and availability issues. Next, a comprehensive overview of security attacks encountered in wireless networks is presented in view of the network protocol architecture, where the potential security threats are discussed at each protocol layer. We also provide a survey of the existing security protocols and algorithms that are adopted in the existing wireless network standards, such as the Bluetooth, Wi-Fi, WiMAX, and the long-term evolution (LTE) systems. Then, we discuss the state of the art in physical-layer security, which is an emerging technique of securing the open communications environment against eavesdropping attacks at the physical layer. Several physical-layer security techniques are reviewed and compared, including information-theoretic security, artificial-noise-aided security, security-oriented beamforming, diversity-assisted security, and physical-layer key generation approaches. Since a jammer emitting radio signals can readily interfere with the legitimate wireless users, we also introduce the family of various jamming attacks and their countermeasures, including the constant jammer, intermittent jammer, reactive jammer, adaptive jammer, and intelligent jammer. Additionally, we discuss the integration of physical-layer security into existing authentication and cryptography mechanisms for further securing wireless networks. Finally, some technical challenges which remain unresolved at the time of writing are summarized and the future trends in wireless security are discussed.

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Section: Introductionmentioning

confidence: 99%

A Survey on Wireless Security: Technical Challenges, Recent Advances, and Future Trends

et al. 2016

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show abstract

“…What makes the eavesdropping attacks very critical is the fact that it is difficult to be detected by the victims since it could be processed without leaving any traces. To deal with this security dilemma, some related works proposed the use of artificial noise (AN) where the transmitter perturbs the attacker channel by sending a dedicated signal [16], [17]. This signal is generated orthogonally to the main link between the legitimate entities so that it will affect only the eavesdropper link.…”

Section: Introduction a Background And Literature Reviewmentioning

confidence: 99%

PLS for V2I Communications Using Friendly Jammer and Double kappa-mu Shadowed Fading

Mensi¹,

Rawat²,

Balti³

2020

Preprint

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The concept of intelligent transportation systems (ITS) is considered to be a highly promising area of research due to its diversity of unique features. It is based mainly on the wireless vehicular network (WVN), where vehicles can perform sophisticated services such as sharing real-time safety information. To ensure high-quality service, WVN needs to solve the security challenges like eavesdropping, where malicious entities try to intercept the confidential transmitted signal. In this paper, we are going to provide a security scheme under the Double kappa-mu Shadowed fading. Our solution is based on the use of a friendly jammer that will transmit an artificial noise (AN) to jam the attacker's link and decrease its eavesdropping performances. To evaluate the efficiency of our solution, we investigated the outage probability for two special cases: Nakagami-m and Rician shadowed while taking into consideration the density of the blockage and the shadowing effects. We also studied the average secrecy capacity via deriving closed-form expressions of the ergodic capacity at the legitimate receiver and the attacker for the special case: Nakagami-m fading distribution.

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“…If the secrecy capacity falls below zero, the transmissions from the source to the destination become insecure and the eavesdropper would become capable of intercepting the source's transmissions [35], [36]. In order to improve the attainable transmission security, it is of importance to increase the secrecy capacity by exploiting sophisticated signal processing techniques, such as the artificial noise aided security [37]- [39], security-oriented beamforming [40], [41], security-oriented diversity approaches [42], [43] and so on.…”

Section: Introductionmentioning

confidence: 99%

A Survey on Wireless Security: Technical Challenges, Recent Advances and Future Trends

Zou,

Zhu,

Wang

et al. 2015

Preprint

View full text Add to dashboard Cite

Due to the broadcast nature of radio propagation, the wireless air interface is open and accessible to both authorized and illegitimate users. This completely differs from a wired network, where communicating devices are physically connected through cables and a node without direct association is unable to access the network for illicit activities. The open communications environment makes wireless transmissions more vulnerable than wired communications to malicious attacks, including both the passive eavesdropping for data interception and the active jamming for disrupting legitimate transmissions. Therefore, this paper is motivated to examine the security vulnerabilities and threats imposed by the inherent open nature of wireless communications and to devise efficient defense mechanisms for improving the wireless network security. We first summarize the security requirements of wireless networks, including their authenticity, confidentiality, integrity and availability issues. Next, a comprehensive overview of security attacks encountered in wireless networks is presented in view of the network protocol architecture, where the potential security threats are discussed at each protocol layer. We also provide a survey of the existing security protocols and algorithms that are adopted in the existing wireless network standards, such as the Bluetooth, Wi-Fi, WiMAX, and the long-term evolution (LTE) systems. Then, we discuss the state-of-the-art in physical-layer security, which is an emerging technique of securing the open communications environment against eavesdropping attacks at the physical layer. Several physical-layer security techniques are reviewed and compared, including information-theoretic security, artificial noise aided security, security-oriented beamforming, diversity assisted security, and physical-layer key generation approaches. Since a jammer emitting radio signals can readily interfere with the legitimate wireless users, we also introduce the family of various jamming attacks and their counter-measures, including the constant jammer, intermittent jammer, reactive jammer, adaptive jammer and intelligent jammer. Additionally, we discuss the integration of physical-layer security into existing authentication and cryptography mechanisms for further securing wireless networks. Finally, some technical challenges which remain unresolved at the time of writing are summarized and the future trends in wireless security are discussed.

show abstract

Analysis on the effects of artificial noise on physical layer security

Cited by 9 publications

References 10 publications

A Survey on Wireless Security: Technical Challenges, Recent Advances, and Future Trends

A Survey on Wireless Security: Technical Challenges, Recent Advances, and Future Trends

PLS for V2I Communications Using Friendly Jammer and Double kappa-mu Shadowed Fading

A Survey on Wireless Security: Technical Challenges, Recent Advances and Future Trends

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