SVD-Aided Multi-Beam Directional Modulation Scheme Based on Frequency Diverse Array

Cheng, Qi; Fusco, Vincent; Zhu, Jiang; Wang, Shilian; Gu, Chao

doi:10.1109/lwc.2019.2960493

Cited by 17 publications

(25 citation statements)

References 13 publications

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“…Here we assume the practical WFRFT parameter of Bob is Inde. † PA [16]− [19] Ro-PA ‡[20] [21] FDA [22]− [24] MP-DM [ where ∆α refers to the mismatch parameter between Alice and Bob, which, according to (28), equals zero in the ideal case. Simulations will be provided in the following section to investigate the impact of mismatched WFRFT parameter on the proposed WFRFT-DM schemes.…”

Section: Robustnessmentioning

confidence: 99%

“…The work in [20] [21] presented a robust synthesis method using optimization algorithms for multi-beam DM transmissions with imperfect estimations of directions. In addition to multi-direction DM transmissions, point-to-multipoint DM transmissions were studied in [22]- [24] using FDA. The retrodirective phased array was studied in [25] to realize ANaided secure DM transmission in multi-path environments.…”

Section: Introductionmentioning

confidence: 99%

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WFRFT-Aided Power-Efficient Multi-Beam Directional Modulation Schemes Based on Frequency Diverse Array

Cheng

Fusco

Zhu

et al. 2019

IEEE Trans. Wireless Commun.

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The artificial noise (AN) aided multi-beam directional modulation (DM) technology is capable of wireless physical layer secure (PLS) transmissions for multiple desired receivers in free space. The application of AN, however, makes it less powerefficient for such a DM system. To address this problem, the weighted fractional Fourier transform (WFRFT) technology is employed in this paper to achieve power-efficient multi-beam DM transmissions. Specifically, a power-efficient multi-beam WFRFT-DM scheme with cooperative receivers and a power-efficient multi-beam WFRFT-DM scheme with independent receivers are proposed based on frequency diverse array (FDA), respectively. The bit error rate (BER), secrecy rate, and robustness of the proposed multi-beam WFRFT-DM schemes are analyzed. Simulations demonstrate that 1) the proposed multi-beam WFRFT-DM schemes are more power-efficient than the conventional multibeam AN-DM scheme; 2) the transmission security can also be guaranteed even if the eavesdroppers are located close to or the same as the desired receivers; and 3) the proposed multi-beam WFRFT-DM schemes are capable of independent transmissions for different desired receivers with different modulations.Index Terms-Physical layer security (PLS), directional modulation (DM), frequency diverse array (FDA), WFRFT, powerefficient, multi-beam.

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Section: Robustnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

WFRFT-Aided Power-Efficient Multi-Beam Directional Modulation Schemes Based on Frequency Diverse Array

Cheng

Fusco

Zhu

et al. 2019

IEEE Trans. Wireless Commun.

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“…When realizing FDAs can generate angle-range dependent beamforming patterns, plenty of efforts have been made to incorporate FDA concept into DM transmitters [6]- [12], claiming that the information D can be securely delivered to a pre-specified angle-range coordinate, saying (θ 0 , R). The general form of the resulting FDA-DM systems reported in previous works is formulated in this section.…”

Section: Previously Reported Fda-dm Systemsmentioning

confidence: 99%

“…The previously reported FDA-DM works [5]- [12] claimed that for a desired receiver's located at (θ 0 , R) the information D can be uniquely conveyed to the desired receiver at (θ 0 , R) only. This is under assumption that the receiver samples signals at a reference time t = 0 when waveforms from all antennas converge at a desired distance R. For locations other than (θ 0 , R), the second summation in (11) is non-zero at t = 0, acting as orthogonal artificial noise in both angle and range domains.…”

Section: Previously Reported Fda-dm Systemsmentioning

confidence: 99%

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Physical Limitation of Range-Domain Secrecy Using Frequency Diverse Arrays

2020

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In this paper, the concept and recent development of exploiting frequency diverse array (FDA) and its variants for the physical-layer wireless security have been revisited and carefully examined. Following rigorous analytical derivation and illustrative simulations, the authors realize that the investigations performed in some recent works overlooked one critical issue facing the real-world applications, and system models established and used before were based on a limited assumption, i.e. that the legitimate and eavesdropping users at different ranges sample the signal waveforms at the same time instant. The limitation of this assumption results in their studies inconclusive. The authors aim to take the first step to divert research efforts and rectify the previous incomplete analyses. The authors argue that in the current technology base the FDA cannot secure a free-space wireless transmission in range domain, because the previously claimed 'secure reception region' propagates in range domain as time elapses. INDEX TERMS Directional modulation, frequency diverse array (FDA), physical-layer wireless security, radiation patterns.

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Secure beamforming and power‐efficient artificial‐noise optimization for multibeam directional modulation

Zhou

Wang

Cheng

et al. 2020

Trans Emerging Tel Tech

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In this article, an anti‐eavesdropping zero‐forcing plus power‐efficient artificial‐noise optimization method for multibeam directional modulation (DM) synthesis is proposed. It aims to prevent known and unknown eavesdroppers intercepting useful signals as far as possible and achieve a narrower bit error rate (BER) main beamwidth under the premise of limited artificial‐noise (AN) power consumption. Beam pattern nulls are generated in known eavesdroppers directions by utilizing the orthogonality of zero‐forcing beamforming. Low‐sidelobe beamforming is also introduced to DM for the first time to suppress unknown eavesdroppers outside main lobes. The distribution of AN power in all directions is optimized by minimizing the AN transmit power subject to a series of secrecy rate (SR) constraints. Simulation results show that the proposed method outperforms the state‐of‐the‐art DM synthesis methods with regard to power efficiency, SR and BER performance.

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SVD-Aided Multi-Beam Directional Modulation Scheme Based on Frequency Diverse Array

Cited by 17 publications

References 13 publications

WFRFT-Aided Power-Efficient Multi-Beam Directional Modulation Schemes Based on Frequency Diverse Array

WFRFT-Aided Power-Efficient Multi-Beam Directional Modulation Schemes Based on Frequency Diverse Array

Physical Limitation of Range-Domain Secrecy Using Frequency Diverse Arrays

Secure beamforming and power‐efficient artificial‐noise optimization for multibeam directional modulation

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