SWIPT in MISO full-duplex systems

Okandeji, Alexander A.; Khandaker, Muhammad R. A.; Wong, Kai-Kit; Zheng, Gan; Zhang, Yangyang; Zheng, Zhongbin; Liu, Ruopeng

doi:10.1109/jcn.2017.000079

Cited by 6 publications

(7 citation statements)

References 26 publications

(63 reference statements)

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“…Nevertheless, the combination of two-way multiple-antenna system and SWIPT to enhance energy efficiency and secure information have not considered yet. In two-way networks, several prior works have investigated how to optimize power and information efficiency with MISO transceivers [16][17][18][19][20]. Two-way MISO networks with one base station and multiple users were investigated to maximize harvested energy [16] or minimize total transmission power [17].…”

Section: Related Work and Motivationsmentioning

confidence: 99%

Optimizing a Secure Two-Way Network with Non-Linear SWIPT, Channel Uncertainty, and a Hidden Eavesdropper

Tuan

Duy²,

Nguyen

et al. 2020

Electronics

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In this paper, the optimization of downlink beamforming vectors, uplink transmission power, and power-splitting factors is investigated for a secure two-way SWIPT network in the presence of a hidden eavesdropper and non-linear energy harvesting circuits over both perfect and imperfect channels. The eavesdropper is inactive, so its channel information is not available at the base stations (BSs). The purpose of artificial noise is to create downlink interference with the hidden eavesdropper as much as possible, while satisfying the quality of service for two-way communications. For perfect downlink channels, the semidefinite relaxation (SDR) technique is exploited, and the optimal matrices are proven to satisfy rank-1 conditions, thus providing the optimal beamforming vectors. For imperfect downlink channel state information, we propose an iterative algorithm with a penalty function to obtain the approximate rank-1 matrices. On uplink, we attain the optimal transmission power for users receiving maximum ratio transmission beamforming at the BSs. Eventually, the numerical experiments show the superiority of the proposed scheme, compared to a conventional scheme, in terms of signal-to-interference-plus-noise ratio at the eavesdropper.

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Section: Related Work and Motivationsmentioning

confidence: 99%

Optimizing a Secure Two-Way Network with Non-Linear SWIPT, Channel Uncertainty, and a Hidden Eavesdropper

Tuan

Duy²,

Nguyen

et al. 2020

Electronics

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“…As for FD systems, the authors study the joint design of beamforming matrix in multi-user FD system. By using semidefinite relaxation (SDR) method, the solution of selfinterfering channel is obtained [21]. In [22], the authors propose a FD wireless-powered communication network (FD-WPCN), and design a protocol based on time allocation.…”

Section: Introductionmentioning

confidence: 99%

Optimal Dynamic Resource Allocation for Multi-Point Communication in WBAN

et al. 2020

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Considering the characteristics of lower power resources in multi-point wireless body area networks (WBANs), the wireless energy and information transmission in full duplex (FD) mode is considered. We propose a transmission protocol based on time division multiple access, which includes two phases. In the inactive phase, the signal access point (AP) broadcasts Radio Frequency (RF) energy to the sensors. When the energy collected by all sensors reaches their respective energy thresholds, the active phase will start. In the active phase, the sensors send back the collected physiological information parameters to the AP, while sensors still collecting the energy transmitted from the AP to achieve the purpose of energy accumulating. Our goal is to obtain the optimal time allocation ratio through the joint objective linear programming method to obtain the maximum average sum-throughput. The simulation results compared with the AP with FD and the sensors with half duplex (HD) show that our proposed optimization method can improve system throughput obviously. INDEX TERMS Wireless body area network (WBAN), energy harvest, energy and information transfer, full duplex (FD), half duplex (HD), linear programming method.

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“…While traditional half-duplex (HD) communication systems operate in either frequency division duplexing or time division duplexing mode due to lack of practical devices that can transmit and receive concurrently using the same time-frequency resources, recent results in full-duplex (FD) communications have opened up new possibilities to double spectral efficiency in next-generation wireless communications [1]- [4]. However, the major detrimental element in FD communications is the so called self-interference (SI) generated by the transmitting node's own signals.…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, D2D communications are more vulnerable to security attacks compared with the traditional D2BS counterpart [1], [12]- [16]. The main reason is the limited computational capacity of the D2D nodes to implement traditional cryptographic security measures.…”

Section: Introductionmentioning

confidence: 99%

Secure Full-Duplex Device-to-Device Communication

Khandaker

Masouros

Wong

2017

2017 IEEE Globecom Workshops (GC Wkshps)

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This paper considers full-duplex (FD) device-todevice (D2D) communications in a downlink MISO cellular system in the presence of multiple eavesdroppers. The D2D pair communicate sharing the same frequency band allocated to the cellular users (CUs). Since the D2D users share the same frequency as the CUs, both the base station (BS) and D2D transmissions interfere each other. In addition, due to limited processing capability, D2D users are susceptible to external attacks. Our aim is to design optimal beamforming and power control mechanism to guarantee secure communication while delivering the required quality-of-service (QoS) for the D2D link. In order to improve security, artificial noise (AN) is transmitted by the BS. We design robust beamforming for secure message as well as the AN in the worst-case sense for minimizing total transmit power with imperfect channel state information (CSI) of all links available at the BS. The problem is strictly non-convex with infinitely many constraints. By discovering the hidden convexity of the problem, we derive a rank-one optimal solution for the power minimization problem.

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SWIPT in MISO full-duplex systems

Cited by 6 publications

References 26 publications

Optimizing a Secure Two-Way Network with Non-Linear SWIPT, Channel Uncertainty, and a Hidden Eavesdropper

Optimizing a Secure Two-Way Network with Non-Linear SWIPT, Channel Uncertainty, and a Hidden Eavesdropper

Optimal Dynamic Resource Allocation for Multi-Point Communication in WBAN

Secure Full-Duplex Device-to-Device Communication

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