Robust Secure Beamforming in MISO Full-Duplex Two-Way Secure Communications

Ran, Feng; Li, Quanzhong; Zhang, Qi; Qin, Jiayin

doi:10.1109/tvt.2015.2394370

Cited by 60 publications

(56 citation statements)

References 23 publications

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“…If an optimal solution to (25) satisfies the rank-one constraints, the optimal solution to (25) is also an optimal solution to (23), which is verified in Appendix A. Since the inequality constraints in the optimization problem (25) are affine, the Slater's condition holds when the optimization problem (25) is feasible [38].…”

Section: B Optimal Joint Beamforming and An Vectors To Sitr-maximizamentioning

confidence: 78%

Secure Beamforming in Full-Duplex MISO-SWIPT Systems With Multiple Eavesdroppers

Dong

Shafie

Hossain

et al. 2018

IEEE Trans. Wireless Commun.

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Physical layer security is a key issue in the full duplex (FD) communication systems due to the broadcast nature of wireless channels. In this paper, the joint design of information and artificial noise beamforming vectors is proposed for the FD simultaneous wireless information and power transferring (FD-SWIPT) systems. To guarantee high security and energy harvesting performance of the FD-SWIPT system, the proposed design is formulated as a sum information transmission rate (SITR) maximization problem under information-leakage and energy constraints. In addition, we consider the fairness issue between the uplink and downlink information transmission rates by formulating a fairness-aware SITR-maximization problem. Although the formulated SITR-maximization and fairness-aware SITR-maximization problems are non-convex, we solve them via semidefinite relaxation and one-dimensional search. The optimality of our proposed algorithms is theoretically proved, and the computation complexities are established. Moreover, we propose two suboptimal solutions to the formulated optimization problems. In terms of the SITR-maximization problem, numerical results show that the performance achieved by one of the two suboptimal algorithms is close to the performance of the optimal algorithm with increasing maximum transmission power of the FD-BST.The upsurging wireless data volume drives the industrial and academic communities to search for efficient ways to boost the usage of the already scarce radio-frequency (RF) spectrum in the fifth generation (5G) wireless communication systems [1]. Full-duplex (FD) technology is considered as one of the promising solutions to improve the RF spectrum utilization due to its ability to double the spectrum efficiency. Moreover, energy efficiency is enhanced given the unchanged power consumption and improved spectrum efficency [1], [2]. However, FD nodes suffer from a strong loopback self-interference (LSI) due to the short distance between the transmitter and receiver sides on an FD node. Several LSI cancellation techniques are proposed in the FD literature, e.g., natural isolation [3], digital-analog domain cancellation [4], and spatial suppression [5]- [7]. By placing the absorptive shielding in the LSI channel, the natural isolation is attractive due to its implementation simplicity. However, the effectiveness of the natural isolation is limited by the form-factor of the wireless devices (i.e., the smaller the device, the less room to implement the isolator). It is even the case that using a high-end duplexer may not be sufficient for communication [5]. An alternative scheme to cancel the LSI is by using the digital and/or analog domain cancellation techniques. However, the dynamic range of the reception circuits is a bottleneck to cancel the strong LSI [2], [8]. As a result, spatial suppression, which is based on the spatial diversity to suppress the LSI, is required before further processing of the received signals [5]-[7]. Simultaneous wireless information and power transferring (SWIPT) sys...

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Section: B Optimal Joint Beamforming and An Vectors To Sitr-maximizamentioning

confidence: 78%

Secure Beamforming in Full-Duplex MISO-SWIPT Systems With Multiple Eavesdroppers

Dong

Shafie

Hossain

et al. 2018

IEEE Trans. Wireless Commun.

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“…On the other hand, when the Eve is completely passive, the BS and UT may know nothing about the CSI of the wiretap channels, implying thatH E andḡ E can take arbitrary values. We characterize the uncertainty associated with the CSI estimation and residual self-interference channel by the widely adopted deterministic uncertainty model [18], [19]. In this model, H L , ∆H E , and ∆g E are bounded by the sets ξ HL…”

Section: B Channel State Information Modelmentioning

confidence: 99%

Robust Beamforming and Jamming for Enhancing the Physical Layer Security of Full Duplex Radios

Kong

Yang²,

Wang

et al. 2019

IEEE Trans.Inform.Forensic Secur.

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In this paper, we investigate the physical layer security of a full-duplex base station (BS) aided system in the worst case, where an uplink transmitter (UT) and a downlink receiver (DR) are both equipped with a single antenna, while a powerful eavesdropper is equipped with multiple antennas. For securing the confidentiality of signals transmitted from the BS and UT, an artificial noise (AN) aided secrecy beamforming scheme is proposed, which is robust to the realistic imperfect state information of both the eavesdropping channel and the residual self-interference channel. Our objective function is that of maximizing the worst-case sum secrecy rate achieved by the BS and UT, through jointly optimizing the beamforming vector of the confidential signals and the transmit covariance matrix of the AN. However, the resultant optimization problem is nonconvex and non-linear. In order to efficiently obtain the solution, we transform the non-convex problem into a sequence of convex problems by adopting the block coordinate descent algorithm. We invoke a linear matrix inequality for finding its Karush-Kuhn-Tucker (KKT) solution. In order to evaluate the achievable performance, the worst-case secrecy rate is derived analytically. Furthermore, we construct another secrecy transmission scheme using the projection matrix theory for performance comparison. Our simulation results show that the proposed robust secrecy transmission scheme achieves substantial secrecy performance gains, which verifies the efficiency of the proposed method.

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“…and ) where W a,b = w a,b w H a,b and W b,a = w b,a w H b,a . Substituting (13)-(15) into the P-SRM problem, we obtain a simplified P-SRM (SP-SRM) problem (16)…”

Section: Hence the An Vectors Can Be Denoted Asmentioning

confidence: 99%

“…On the one hand, secure resource allocation in FD communication systems has been widely investigated for various topologies, e.g., point-to-point (PtP) topology [11], [12], [15], [16], point-to-multipoint (PtMP) topology [14], and wireless relaying topology [4], [11], [17]. Two major optimization problems are considered in secure FD communication systems, namely, secrecy-capacity maximization [11], [12], [16], [17] and transmission-power minimization [14]. For example, using jamming signals by the legitimate receiver, the authors in [11] studied secrecy-capacity maximization in FD communication systems with a PtP topology.…”

Section: Introductionmentioning

confidence: 99%

Secure Beamforming in Full-Duplex SWIPT Systems with Loopback Self-Interference Cancellation

Dong

Shafie

Hossain

et al. 2018

2018 IEEE International Conference on Communications (ICC)

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Security is a critical issue in full duplex (FD) communication systems due to the broadcast nature of wireless channels. In this paper, joint design of information and artificial noise beamforming vectors is proposed for the FD simultaneous wireless information and power transferring (FD-SWIPT) systems with loopback self-interference cancellation. To guarantee high security and energy harvesting performance of the FD-SWIPT system, the proposed design is formulated as a secrecy rate maximization problem under energy transfer rate constraints. Although the secrecy rate maximization problem is non-convex, we solve it via semidefinite relaxation and a twodimensional search. We prove the optimality of our proposed algorithm and demonstrate its performance via simulations.

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Robust Secure Beamforming in MISO Full-Duplex Two-Way Secure Communications

Cited by 60 publications

References 23 publications

Secure Beamforming in Full-Duplex MISO-SWIPT Systems With Multiple Eavesdroppers

Secure Beamforming in Full-Duplex MISO-SWIPT Systems With Multiple Eavesdroppers

Robust Beamforming and Jamming for Enhancing the Physical Layer Security of Full Duplex Radios

Secure Beamforming in Full-Duplex SWIPT Systems with Loopback Self-Interference Cancellation

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