Outage Constrained Robust Beamforming for Secure Broadcasting Systems With Energy Harvesting

Zhu, Zhengyu; Chu, Zheng; Wang, Zhongyong; Lee, Inkyu

doi:10.1109/twc.2016.2605102

Cited by 119 publications

(67 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This beamforming design has been successfully addressed in [14], [15]. In regards to outage probability, several works such as [16], [17] used the Bernstein-type inequalities obtained in an unpublished work [18]. We will show that the results based on such Bernstein-type inequalities may be very conservative.…”

Section: Introductionmentioning

confidence: 91%

Beamforming Optimization for Physical Layer Security in MISO Wireless Networks

Sheng

Tuan

Poor

2018

IEEE Trans. Signal Process.

View full text Add to dashboard Cite

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where the transmitters are equipped with multiple antennas while the users and eavesdropper are equipped with a single antenna, is considered. At different levels of wireless channel knowledge, the problem of interest is beamforming to optimize the users' quality-of-service (QoS) in terms of their secrecy throughputs or maximize the network's energy efficiency under users' QoS. All these problems are seen as very difficult optimization problems with many nonconvex constraints and nonlinear equality constraints in beamforming vectors. The paper develops path-following computational procedures of low-complexity and rapid convergence for the optimal beamforming solution. Their practicability is demonstrated through numerical examples. Index TermsMulti-input single output network, secure communication, energy-efficient communication, beamforming, path-following algorithms.

show abstract

Section: Introductionmentioning

confidence: 91%

Beamforming Optimization for Physical Layer Security in MISO Wireless Networks

Sheng

Tuan

Poor

2018

IEEE Trans. Signal Process.

View full text Add to dashboard Cite

show abstract

“…Here, the equations from (8) to (11) stem from the zero gradient conditions with respect to L k , W k ,F, and γ, respectively, and the equations from (13) to (15) represent the complement slackness conditions. Note that (9) follows from [19,Theorem 2].…”

Section: A Wmmse Problem Reformulationmentioning

confidence: 99%

Optimal Precoder Designs for Sum-Utility Maximization in SWIPT-Enabled Multi-User MIMO Cognitive Radio Networks

Song

Lee

2019

IEEE Systems Journal

View full text Add to dashboard Cite

In this paper, we propose a generalized framework that combines the cognitive radio (CR) techniques for spectrum sharing and the simultaneous wireless information and power transfer (SWIPT) for energy harvesting (EH) in the conventional multi-user MIMO (MuMIMO) channels, which leads to an MuMIMO-CR-SWIPT network. In this system, we have one secondary base-station (S-BS) that supports multiple secondary information decoding (S-ID) and secondary EH (S-EH) users simultaneously under the condition that interference power that affects the primary ID (P-ID) receivers should stay below a certain threshold. The goal of the paper is to develop a generalized precoder design that maximizes the sum-utility cost function under the transmit power constraint at the S-BS, and the EH constraint at each S-EH user, and the interference power constraint at each P-ID user. Therefore, the previous studies for the CR and SWIPT systems are casted as particular solutions of the proposed framework. The problem is inherently non-convex and even the weighted minimum mean squared error (WMMSE) transformation does not resolve the non-convexity of the original problem. To tackle the problem, we find a solution from the dual optimization via sub-gradient ellipsoid method based on the observation that the WMMSE transformation raises zero-duality gap between the primal and the dual problems. We also propose a simplified algorithm for the case of a single S-ID user, which is shown to achieve the global optimum. Finally, we demonstrate the optimality and efficiency of the proposed algorithms through numerical simulation results.

show abstract

“…Although there still exist numerous studies on the unknown or imperfect CSI of eavesdroppers [25][26][27], all of these only focused on the wiretap by static eavesdroppers. The more general case is that eavesdroppers may have other behaviors.…”

Section: Related Workmentioning

confidence: 99%

A Location Prediction-Based Helper Selection Scheme for Suspicious Eavesdroppers

Huo

Tian

et al. 2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

This paper aims to improve security performance of data transmission with a mobile eavesdropper in a wireless network. The instantaneous channel state information (CSI) of the mobile eavesdropper is unknown to legitimate users during the communication process. Different from existing work, we intend to reduce power consumption of friendly jamming signals. Motivated by the goal, this work presents a location-based prediction scheme to predict where the eavesdropper will be later and to decide whether a friendly jamming measure should be selected against the eavesdropper. The legitimate users only take the measure when the prediction result shows that there will be a risk during data transmission. According to the proposed method, system power can be saved to a large degree. Particularly, we first derive the expression of the secrecy outage probability and set a secrecy performance target. After providing a Markov mobile model of an eavesdropper, we design a prediction scheme to predict its location, so as to decide whether to employ cooperative jamming or not, and then design a power allocation scheme and a fast suboptimal helper selection method to achieve targeted and efficient cooperative jamming. Finally, numerical simulation results demonstrate the effectiveness of the proposed schemes.

show abstract

Outage Constrained Robust Beamforming for Secure Broadcasting Systems With Energy Harvesting

Cited by 119 publications

References 47 publications

Beamforming Optimization for Physical Layer Security in MISO Wireless Networks

Beamforming Optimization for Physical Layer Security in MISO Wireless Networks

Optimal Precoder Designs for Sum-Utility Maximization in SWIPT-Enabled Multi-User MIMO Cognitive Radio Networks

A Location Prediction-Based Helper Selection Scheme for Suspicious Eavesdroppers

Contact Info

Product

Resources

About