QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

Shafie, Ahmed El; Duong, Trung Q.; Al-Dhahir, Naofal

doi:10.1109/twc.2016.2636201

Cited by 10 publications

(11 citation statements)

References 31 publications

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“…The legitimate nodes regularly change the secret key seeds to maintain the AN sequence secured from the eavesdropper. A similar assumption can be found in, e.g., [20], [33] and the references therein. and…”

Section: A System Model and Assumptionssupporting

confidence: 66%

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: A System Model and Assumptionssupporting

confidence: 66%

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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Section: A Related Workmentioning

confidence: 99%

“…The preliminary results in [23] showed the gain of joint medium-access control and PHY layer designs on enhancing the security of buffered information source nodes, when those nodes help in jamming whenever they are not scheduled for information transmission. In this paper, unlike [23], we do not assume knowledge of Eve's instantaneous CSI at the legitimate nodes. Furthermore, we assume the presence of a battery-powered cooperative jammer that helps in securing the transmissions and achieving the quality-of-service (QoS) requirements of the multiple-access system when the source nodes are equipped with rechargeable batteries and harvest energy from the ambient energy sources.…”

Section: A Related Workmentioning

confidence: 99%

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Wiretap TDMA Networks With Energy-Harvesting Rechargeable-Battery Buffered Sources

et al. 2019

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We investigate the physical-layer security of an uplink wireless time-division multiple-access channel with energy-harvesting source nodes. We consider a set of source nodes equipped with rechargeable batteries and information buffers communicating confidentially with a base station, Bob, in the presence of a passive eavesdropper, Eve. An energy-harvesting rechargeable-battery cooperative jammer is assumed to assist the source nodes to confidentially send their information messages. We propose a two-level optimization formulation to improve the system's security performance. At the first optimization level, we propose a jamming scheme under energy constraints at different nodes to reduce the secrecy outage probabilities without relying on the eavesdropper's instantaneous channel state information. At the second optimization level, we optimize the number of energy packets used at the source nodes and the cooperative jammer as well as the time-slot allocation probabilities to maximize the secure throughput under the network's queues stability constraints and an application-specific secure throughput for each legitimate source node. The numerical results show the significant performance gains of our proposed optimization relative to two important benchmarks. We verify our theoretical findings through simulations and quantify the impact of key system design parameters on the security performance. INDEX TERMS Energy harvesting, physical-layer security, information and energy queues, secrecy rates, secure throughput.

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“…The legitimate nodes regularly change the secret key seeds to maintain the AN sequence secured from the eavesdropper. A similar assumption can be found in, e.g.,[15],[26] and the references therein.…”

mentioning

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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QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

Cited by 10 publications

References 31 publications

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

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

Wiretap TDMA Networks With Energy-Harvesting Rechargeable-Battery Buffered Sources

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

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