Wireless Physical Layer Security

Debbah, Mérouane; El-Gamal, Hesham; Poor, H. Vincent; Shamai, Shlomo

doi:10.1155/2009/404061

Cited by 15 publications

(17 citation statements)

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“…5 In short, in literature, various subtle jamming techniques, and corresponding anti-jamming solutions, were implemented extensively; 3,6 however, the relevant terms that to fully qualify and also to evaluate the success rates of communication, while employing these techniques, are achieved through the theoretical computations that have a high aspect in measurements. 6,7 As examined in previous studies, [8][9][10] information security is still the main issue in wireless communication, the security mechanisms such as applying encryption, authentication, and security management, [11][12][13] have some great security contributions against several vulnerabilities but are limited to applications at the physical layer. 4 Therefore, among other solutions, information-theoretic security is one of the solutions employed to evaluate the wireless channel secrecy, considering as a part of physical layer security.…”

Section: Introductionmentioning

confidence: 99%

“…For example, a jammer intends to place its antenna particularly directed toward the receiver and tries to demodulate the coming signals, hence getting the baseband signals successfully. A similar case may be possible while employing encryption schemes, for example, if the jammer has unlimited power to break the encryption codes using some potential cryptanalysis schemes, 7,12 consequently it can obtain the original modulated bits. 4,7 However, given the definition of Shannon, 15 the perfect secrecy can be achieved in wireless transmission, if the unknown entity is not successful in deciphering the spread code, or the signals are similar to noise, or even the presence of inexhaustible computational power.…”

Section: Introductionmentioning

confidence: 99%

“…A similar case may be possible while employing encryption schemes, for example, if the jammer has unlimited power to break the encryption codes using some potential cryptanalysis schemes, 7,12 consequently it can obtain the original modulated bits. 4,7 However, given the definition of Shannon, 15 the perfect secrecy can be achieved in wireless transmission, if the unknown entity is not successful in deciphering the spread code, or the signals are similar to noise, or even the presence of inexhaustible computational power. 7,16,17 In this study, an intelligent step is taken to examine the security of wireless communication systems and its limitations at the physical layer; later a new integrated security approach, employing an integrated cryptography and spread spectrum solution, is proposed and implemented; this study concluded that there is enough security that can be achieved at the physical layer.…”

Section: Introductionmentioning

confidence: 99%

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An efficient emerging network and secured hopping scheme employed over the unsecured public channels

Shahzad

Zhang

Landry

et al. 2020

International Journal of Distributed Sensor Networks

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With the emergence of new smart technologies, including the Internet of Things, wireless media are playing an important role to connect numerous devices to fulfill the requirements of newly developed communication systems. The massive connectivity, therefore, made the wireless spectrum too crowded and gave several challenges to resisting against potential wireless jammers. Note that, the two main challenges that have always been a part of any communication system, especially in the case of wireless communication, are information security and information jamming. Carefully considering the given challenges, this study uses a new advanced anti-jamming approach, a modulation technique based on the frequency-hopping spread spectrum, which has notably high resistance accounted against various potential jammers. The objective of this study is two-fold. First, the physical channel properties are considered, and the random bits are transmitted, employing a cryptographic secured hoping-spread pattern, having a set of carrier frequencies, known at both sides of the transmission. Second, the hashing code is computed only for the key, and transmitted along the original hopset, but with distinct frequencies set. The deployed practical anti-jamming approach, therefore, computed a high efficiency to examine the information secrecy well and primarily the connection availability even in the presence of the jammers. Moreover, this study considered and modeled a communication system and evaluated the proposed system's performance, applying the theories of Shannon's entropy and Wyner's entropy (i.e. Wyner's wiretap channel), to anticipate the system's perfect secrecy, even in the worst case when jammer has unlimited computational capabilities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An efficient emerging network and secured hopping scheme employed over the unsecured public channels

Shahzad

Zhang

Landry

et al. 2020

International Journal of Distributed Sensor Networks

View full text Add to dashboard Cite

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“…Hence, security is an important issue in WIPT. Recently, physical layer security (PLS) technologies [16] have attracted a lot of attentions due to the potentials to ensure highly secure communications by exploiting some physical properties of wireless channels. Based on the PLS technologies, a very limited number of research works have considered secure communication in WIPT [17]- [22].…”

Section: Introductionmentioning

confidence: 99%

Secure Beamforming for MIMO Broadcasting With Wireless Information and Power Transfer

Shi

Wu³

et al. 2015

IEEE Trans. Wireless Commun.

201

110

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This paper considers a basic MIMO information-energy broadcast system, where a multi-antenna transmitter transmits information and energy simultaneously to a multi-antenna information receiver and a dual-functional multi-antenna energy receiver which is also capable of decoding information. Due to the open nature of wireless medium and the dual purpose of information and energy transmission, secure information transmission while ensuring efficient energy harvesting is a critical issue for such a broadcast system. Assuming that physical layer security techniques are adopted for secure transmission, we study beamforming design to maximize the achievable secrecy rate subject to a total power constraint and an energy harvesting constraint. First, based on semidefinite relaxation, we propose global optimal solutions to the secrecy rate maximization (SRM) problem in the single-stream case and a specific fullstream case. Then, we propose inexact block coordinate descent (IBCD) algorithm to tackle the SRM problem of general case with arbitrary number of streams. We proves that the IBCD algorithm can monotonically converge to a Karush-Kuhn-Tucker (KKT) solution to the SRM problem. Furthermore, we extend the IBCD algorithm to the joint beamforming and artificial noise design problem. Finally, simulations are performed to validate the effectiveness of the proposed beamforming algorithms. Index TermsBeamforming, wireless information and power transfer, secrecy rate maximization, semidefinite relaxation, block coordinate descent.

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“…While several established protection mechanisms such as cryptography-based techniques and wireless intrusion prevention systems exist, each method has its own weaknesses and is susceptible to failure under different circumstances [2][3][4]. The resulting uncertainties have led to a significant paradigm shift in the design and implementation of wireless security in recent times, where an increasingly cross-layer approach is being pursued to protect wireless networks [5][6][7][8][9][10]. One such avenue for security has been to use the physical layer information to protect against intruders and attackers.…”

Section: Introductionmentioning

confidence: 99%

A Reconfigurable Antenna-Based Solution for Stationary Device Authentication in Wireless Networks

Mookiah

Dandekar

2012

International Journal of Antennas and Propagation

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Applying channel information for user authentication is gaining attention in the area of wireless network security. Similarly, reconfigurable antennas capable of generating multiple decorrelated channel realizations have become increasingly popular in wireless systems. In this paper we propose and evaluate a channel-based authentication scheme that applies the capabilities of a pattern reconfigurable antenna for improved performance in user authentication. Field measurements of the channel frequency response employing such an antenna were performed to quantify the performance of the proposed scheme. Based on these measurements, we show the effect of correlation that exists between the different modes on the authentication performance. Furthermore, the performance gain that can be achieved by the scheme is studied as a function of the number of antenna modes. Offline mode analysis is performed to give a loose upper bound on performance while online mode analysis results are presented to quantify achievable authentication performance in realtime. A general guideline on how to choose the different elements of the decision metric in order to realize better performance for physical layer-based authentication schemes based on any diversity scheme is also developed.

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Wireless Physical Layer Security

Cited by 15 publications

References 0 publications

An efficient emerging network and secured hopping scheme employed over the unsecured public channels

An efficient emerging network and secured hopping scheme employed over the unsecured public channels

Secure Beamforming for MIMO Broadcasting With Wireless Information and Power Transfer

A Reconfigurable Antenna-Based Solution for Stationary Device Authentication in Wireless Networks

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