On the Secrecy Rate of Artificial Noise Assisted MIMOME Channels with Full-Duplex Receiver

Yun, Sangseok; Park, Junguk; Im, Sanghun; Ha, Jeongseok

doi:10.1109/wcnc.2017.7925740

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…of 10 5 independent runs on Eqn. (10). The ergodic secrecy rates of the proposed scheme are compared to the traditional AN schemes [8]- [11], which did not consider the correlation and used all eigen-subchannels to transmit messages, i.e., s 1 = n. In the proposed scheme, the number of eigen-subchannels for sending messages, i.e., s 1 , is a variable.…”

Section: Numerical and Simulate Resultsmentioning

confidence: 99%

“…Recently, AN schemes have been extended to different channels to safeguard sensitive and confidential data [8]- [11]. For instance, [8]- [10] considered Rayleigh MIMO channels, whereas [11] assumed Rician MIMO channels. The basic idea of the aforementioned AN schemes is that message streams are sent in a multiplex mode via all eigen-subchannels (positive eigenvalue channels) at desired directions, and the AN signals are transmitted to a null space of desired directions, such that they do not interfere desired users but only impair eavesdropped channels.…”

Section: Introductionmentioning

confidence: 99%

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Artificial Noisy MIMO Systems Under Correlated Scattering Rayleigh Fading—A Physical Layer Security Approach

Liu

Chen

Wang

et al. 2020

IEEE Systems Journal

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The existing investigations on artificial noise (AN) security systems assumed that only null spaces is used to send AN signals, and all eigen-subchannels should be used to transmit messages. Our previous work proposed an AN scheme that allocates some of eigen-subchannels to transmit AN signals for improving secrecy rates. Nevertheless, our previous work considered only uncorrelated MIMO Rayleigh fading channels. In fact, the correlations among antennas exist in realistic scattering channel environments. In this paper, we extend our previous AN scheme to spatially correlated Rayleigh fading channels at both legitimate receiver-and eavesdropper-sides and derive an exact theoretical expression for the ergodic secrecy rate of the AN scheme, along with an approximate analysis. Both numerical and simulation results show that the proposed AN scheme offers a higher ergodic secrecy rate than the existing schemes, revealing a fact that the correlation among eavesdropper's antennas can potentially improve the secrecy rate of an MIMO system.

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Section: Numerical and Simulate Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Artificial Noisy MIMO Systems Under Correlated Scattering Rayleigh Fading—A Physical Layer Security Approach

Liu

Chen

Wang

et al. 2020

IEEE Systems Journal

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“…So far, the wireless channels rate of secrecy has been explored from several perspectives like in [9,10]. The different perspectives explored are as follows, the fading channels secrecy [9][10][11], the analysis of Gaussian wiretap channels secrecy of [11], the multiple antenna systems secrecy [13][14][15], the broadcast channels secrecy [16], the analysis of secure degrees of freedom [17][18][19][20][21], and the secrecy of cooperative jamming techniques coupled with helpers or relays [22][23][24][25][26][27][28][29].…”

Section: Related Workmentioning

confidence: 99%

Realizing Efficient Security and Privacy in IoT Networks

Anajemba

Tang

Iwendi

et al. 2020

Sensors

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In recent times, security and privacy at the physical (PHY) layer has been a major issue of several communication technologies which comprise the internet of things (IoT) and mostly, the emerging fifth-generation (5G) cellular network. The most real-world PHY security challenge stems from the fact that the passive eavesdropper’s information is unavailable to the genuine source and destination (transmitter/receiver) nodes in the network. Without this information, it is difficult to optimize the broadcasting parameters. Therefore, in this research, we propose an efficient sequential convex estimation optimization (SCEO) algorithm to mitigate this challenge and improve the security of physical layer (PHY) in a three-node wireless communication network. The results of our experiments indicate that by using the SCEO algorithm, an optimal performance and enhanced convergence is achieved in the transmission. However, considering possible security challenges envisaged when a multiple eavesdropper is active in a network, we expanded our research to develop a swift privacy rate optimization algorithm for a multiple-input, multiple-output, multiple-eavesdropper (MIMOME) scenario as it is applicable to security in IoT and 5G technologies. The result of the investigation show that the algorithm executes significantly with minimal complexity when compared with nonoptimal parameters. We further employed the use of rate constraint together with self-interference of the full-duplex transmission at the receiving node, which makes the performance of our technique outstanding when compared with previous studies.

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“…In this one-way wiretap channel, the IBFD node transmits jamming signals to reduce Eve's rates. In [2], [8] in addition to jamming signals, artificial noise is also transmitted from Alice, and the tight lower bound on the achievable ergodic secrecy rate is derived. In [9], Bob transmits secure pilot symbols to estimate the self-interference (SI) channel and make Eve unable to acquire Bob-to-Eve channel estimates (jamming channel).…”

Section: Introductionmentioning

confidence: 99%

Power Allocation For Full-duplex Two-way Wiretap Channel

Garg

Ratnarajah

2022

2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)

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In this paper, we consider a two-way wiretap Multi-Input Multi-Output Multi-antenna Eve (MIMOME) channel, where both nodes (Alice and Bob) transmit and receive in an in-band full-duplex (IBFD) manner. For this system with keyless security, we provide a novel artificial noise (AN) based signal design, where the AN is injected in both signal and null spaces. We present an ergodic secrecy rate approximation to derive the power allocation algorithm. We consider scenarios where AN is known and unknown to legitimate users and include imperfect channel information effects. To maximize secrecy rates subject to the transmit power constraint, a two-step power allocation solution is proposed, where the first step is known at Eve, and the second step helps to improve the secrecy further. We also consider scenarios where partial information is known by Eve and the effects of non-ideal self-interference cancellation. The usefulness and limitations of the resulting power allocation solution are analyzed and verified via simulations. Results show that secrecy rates are less when AN is unknown to receivers or Eve has more information about legitimate users. Since the ergodic approximation only considers Eve's distance, the resulting power allocation provides secrecy rates close to the actual ones.

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On the Secrecy Rate of Artificial Noise Assisted MIMOME Channels with Full-Duplex Receiver

Cited by 10 publications

References 20 publications

Artificial Noisy MIMO Systems Under Correlated Scattering Rayleigh Fading—A Physical Layer Security Approach

Artificial Noisy MIMO Systems Under Correlated Scattering Rayleigh Fading—A Physical Layer Security Approach

Realizing Efficient Security and Privacy in IoT Networks

Power Allocation For Full-duplex Two-way Wiretap Channel

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