Robust Optimization for AN-Aided Transmission and Power Splitting for Secure MISO SWIPT System

Chu, Zheng; Zhu, Zhengyu; Hussein, Jamal Ahmed

doi:10.1109/lcomm.2016.2572684

Cited by 53 publications

(20 citation statements)

References 21 publications

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“…Remark Because we aim at exploring a system with the structure declared in Figure , some techniques, eg, Nemirovski lemma are logically neglected. In association with the methods like Nemirovski lemma (which was proposed for a cooperation scenario‐based relay network), the context is beyond of the scope of the paper.…”

Section: System Model and General Problem Formulationmentioning

confidence: 99%

Probabilistic‐based secrecy rate maximisation for MIMOME wiretap channels: Towards novel convexification procedures

Zamanipour¹

2017

Trans. Emerging Tel. Tech.

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The paper first provides a general overview on the existing probabilistic‐driven methods aimed at convexifying the secrecy rate maximisation problem. Challenges and requirements of the procedures are fully taken into consideration for multiinput multioutput multiantenna eavesdropper wiretap channels. The problem constrained by an outage probability for the pure Ergodic capacity (perfect secrecy defined by Shannon) is analytically solved. Such analytical solution is performed robustly, something that originates principally from our imperfect statistical knowledge of the wiretap channel at the transmitter. Then, solely concentrating on McDiarmid inequality, we also extend our previous work to propose 2 new approaches. The bounds of our represented schemes are obviously accurate, tight, and achievable, something that effectively guarantee the system to overcome the probable challenges, eg, correlation in multiinput multioutput antenna arrays. Furthermore, the procedures are straightforwardly compared with each other from standpoint of complexity. Results are technically conducted to assure us about the proposed methods' merits, merely defining the significantly more favourable asymptotic bounds and the less resultant complexities. In particular, our proposed approaches sensibly outperform all the procedures, per se, something that can be accordingly assigned for other ergodic equilibria.

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Section: System Model and General Problem Formulationmentioning

confidence: 99%

Probabilistic‐based secrecy rate maximisation for MIMOME wiretap channels: Towards novel convexification procedures

Zamanipour¹

2017

Trans. Emerging Tel. Tech.

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“…As newly recently proposed in [33,34], the rank-1 constraint can be basically relaxed as the dual constraints…”

Section: Our Proposed Solutionmentioning

confidence: 99%

Asymptotic Bound of Secrecy Capacity for MIMOME‐Based Transceivers: A Suboptimally Tractable Solution for Imperfect CSI

Zamanipour¹

2017

Mathematical Problems in Engineering

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The paper principally proposes a suboptimally closed-form solution in terms of a general asymptotic bound of the secrecy capacity in relation to MIMOME-based transceivers. Such pivotal solution is essentially tight as well, fundamentally originating from the principle convexity. The resultant novelty, per se, is strictly necessary since the absolutely central criterion imperfect knowledge of the wiretap channel at the transmitter should also be highly regarded. Meanwhile, ellipsoidal channel uncertainty set-driven strategies are physically taken into consideration. Our proposed solution is capable of perfectly being applied for other general equilibria such as multiuser ones. In fact, this in principle addresses an entirely appropriate alternative for worst-case method-driven algorithms utilising some provable inequality-based mathematical expressions. Our framework is adequately guaranteed regarding a totally acceptable outage probability (as 1 − preciseness coefficient). The relative value is almost 10% for the estimation error values (EEVs) ⩽ 0.5 for 2 × 2-based transceivers, which is noticeably reinforced at nearly 5% for EEVs ⩽ 0.9 for the case 4 × 4. Furthermore, our proposed scheme basically guarantees the secrecy outage probability (SOP) less than 0.05% for the case of having EEVs ⩽ 0.3, for the higher power regime.

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“…By adopting the power splitting (PS) receiver, the SWIPT scheme for multiple-input single-output (MISO) downlink systems has been examined in [8] and [11] where perfect channel state information at the transmitter (CSIT) was assumed. In practice, however, due to channel estimation errors and feedback delays, it is not possible to obtain perfect CSIT [14]- [17].…”

Section: Introductionmentioning

confidence: 99%

Robust Designs of Beamforming and Power Splitting for Distributed Antenna Systems With Wireless Energy Harvesting

Zhu

Huang

Chu

et al. 2019

IEEE Systems Journal

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In this paper, we investigate a multiuser distributed antenna system with simultaneous wireless information and power transmission under the assumption of imperfect channel state information (CSI). In this system, a distributed antenna port with multiple antennas supports a set of mobile stations who can decode information and harvest energy simultaneously via a power splitter. To design robust transmit beamforming vectors and the power splitting (PS) factors in the presence of CSI errors, we maximize the average worst-case signal-to-interference-plusnoise ratio (SINR) while achieving individual energy harvesting constraint for each mobile station. First, we develop an efficient algorithm to convert the max-min SINR problem to a set of "dual" min-max power balancing problems. Then, motivated by the penalty function method, an iterative algorithm based on semi-definite programming (SDP) is proposed to achieve a local optimal rank-one solution. Also, to reduce the computational complexity, we present another iterative scheme based on the Lagrangian method and the successive convex approximation (SCA) technique to yield a suboptimal solution. Simulation results are shown to validate the robustness and effectiveness of the proposed algorithms.

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Robust Optimization for AN-Aided Transmission and Power Splitting for Secure MISO SWIPT System

Cited by 53 publications

References 21 publications

Probabilistic‐based secrecy rate maximisation for MIMOME wiretap channels: Towards novel convexification procedures

Probabilistic‐based secrecy rate maximisation for MIMOME wiretap channels: Towards novel convexification procedures

Asymptotic Bound of Secrecy Capacity for MIMOME‐Based Transceivers: A Suboptimally Tractable Solution for Imperfect CSI

Robust Designs of Beamforming and Power Splitting for Distributed Antenna Systems With Wireless Energy Harvesting

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