Location-Based Secure Transmission for Wiretap Channels

Liu, Chenxi; Yang, Nan; Yuan, Jinhong; Malaney, Robert

doi:10.1109/jsac.2015.2430211

Cited by 49 publications

(29 citation statements)

References 69 publications

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“…In this section, we focus on solving Problem 1. By substituting (18) into (15) and (30) into (16), the RTP p  (T) and the CTP p e (T) are, respectively, calculated as (31) and (32), as shown at the top of the next page.…”

Section: Secrecy Performance Optimizationmentioning

confidence: 99%

Enhancing Physical Layer Security of Random Caching in Large-Scale Multi-Antenna Heterogeneous Wireless Networks

Wen

Liu

et al. 2020

IEEE Trans.Inform.Forensic Secur.

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In this paper, we propose a novel secure random caching scheme for large-scale multi-antenna heterogeneous wireless networks, where the base stations (BSs) deliver randomly cached confidential contents to the legitimate users in the presence of passive eavesdroppers as well as active jammers. In order to safeguard the content delivery, we consider that the BSs transmits the artificial noise together with the useful signals. By using tools from stochastic geometry, we first analyze the average reliable transmission probability (RTP) and the average confidential transmission probability (CTP), which take both the impact of the eavesdroppers and the impact of the jammers into consideration. We further provide tight upper and lower bounds on the average RTP. These analytical results enable us to obtain rich insights into the behaviors of the average RTP and the average CTP with respect to key system parameters. Moreover, we optimize the caching distribution of the files to maximize the average RTP of the system, while satisfying the constraints on the caching size and the average CTP. Through numerical results, we show that our proposed secure random caching scheme can effectively boost the secrecy performance of the system compared to the existing solutions.

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Section: Secrecy Performance Optimizationmentioning

confidence: 99%

Enhancing Physical Layer Security of Random Caching in Large-Scale Multi-Antenna Heterogeneous Wireless Networks

Wen

Liu

et al. 2020

IEEE Trans.Inform.Forensic Secur.

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“…As Es' location changes, the proposed beamforming design is able to adapt dynamically to ensure the secure communications of Alice based on the associated channels. Note that the location-based secure robust beamforming design is beyond the scope of this paper, while the interested readers can refer to [28] and the reference therein for more information. Let the channel coefficients over links…”

Section: System Modelmentioning

confidence: 99%

Robust beamforming and cooperative jamming for secure transmission in DF relay systems

Fei

2016

J Wireless Com Network

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In this paper, we study robust joint beamforming and cooperative jamming (CJ) in a secure decode-and-forward (DF) relay system in the presence of multiple eavesdroppers, in which a multi-antenna DF relay employs transmit beamforming to help the source deliver information to the destination and simultaneously generates Gaussian artificial noise to confuse these eavesdroppers. We assume that all the channel state information (CSI) is imperfectly known at the relay subject to norm-bounded CSI errors. Our objective is to maximize the achievable secrecy rate at the destination by jointly optimizing the transmit beamforming vector of information signals and the covariance matrix of jamming signals at the relay subject to its total transmit power constraint. Although this problem is non-convex and in general difficult to be solved, we obtain its optimal solution via the technique of semi-definite relaxation (SDR) together with a one-dimensional (1-D) search. Specifically, we prove that the SDR is tight for the problem of our interest. Finally, numerical results are provided to validate our proposed scheme.

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“…For ease of exposition, here we will determine a CRB estimate of the location error bounds given some Gaussian distribution on the ToA timing errors (e.g. [28]- [30]). In the following we denote the true location of the decryptor by ζ 0 = [x 0 , y 0 ] and the location of the n th RS by ζ n = [x n , y n ].…”

Section: The Decrypting Regionmentioning

confidence: 99%

Quantum Geo-Encryption

Malaney¹

2016

2016 IEEE Global Communications Conference (GLOBECOM)

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Abstract-In this work we introduce the concept of quantum geo-encryption -a protocol that invokes direct quantum encryption of messages coupled to quantum location monitoring of the intended receiver. By obfuscating the quantum information required by both the decrypting process and the location verification process, a communication channel is created in which the encrypted data can only be decrypted at a specific geographic locale. Classical wireless communications can be invoked to unlock the quantum encryption process thereby allowing for any deployment scenario regardless of the channel conditions. Quantum geo-encryption can also be used to realize quantumcomputing instructions that can only be implemented at a specific location, and allow for a specified geographical data-route through a distributed network. Here we consider the operational aspects of quantum geo-encryption in generic Rician channels, demonstrating that the likelihood of a successful spoofing attack approaches zero as the adversary moves away from the allowed decrypting location. The work introduced here resolves a longstanding quest to directly deliver information which can only be decrypted at a given location free of assumptions on the physical security of a receiver.

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Location-Based Secure Transmission for Wiretap Channels

Cited by 49 publications

References 69 publications

Enhancing Physical Layer Security of Random Caching in Large-Scale Multi-Antenna Heterogeneous Wireless Networks

Enhancing Physical Layer Security of Random Caching in Large-Scale Multi-Antenna Heterogeneous Wireless Networks

Robust beamforming and cooperative jamming for secure transmission in DF relay systems

Quantum Geo-Encryption

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