Secrecy Rate Degradation of Ground-to-Air Collaborative Beamforming Due to UAV Jitter

Article Computer Science, Information Systems

A Survey of Physical Layer Techniques for Secure Wireless Communications in Industry

Pablo Angueira et al.

Summary: The industrial environment imposes strict requirements on the infrastructure of communication systems. Wireless systems are a solution, but they have weaknesses in reliability and security. This paper analyzes the security challenges of radio-frequency wireless systems in industrial applications and proposes a methodology for designing protection techniques.

IEEE COMMUNICATIONS SURVEYS AND TUTORIALS (2022)

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Article Engineering, Electrical & Electronic

Multi-Node Open-Loop Distributed Beamforming Based on Scalable, High-Accuracy Ranging

Sean M. Ellison et al.

Summary: We present a distributed antenna array supporting open-loop distributed beamforming at 1.5 GHz, demonstrating the ability to implement and maintain phase-based beamforming without feedback from the destination. Using a scalable, high-accuracy internode ranging technique, we show high-accuracy ranging simultaneously between multiple nodes, allowing for dynamic updating of phase correction and maintaining beamforming in a dynamic array.

IEEE SENSORS JOURNAL (2022)

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Article Engineering, Electrical & Electronic

Jittering Effects Analysis and Beam Training Design for UAV Millimeter Wave Communications

Wei Wang et al.

Summary: This paper investigates the impact of jitter on UAV millimeter-wave communications and proposes a beam training scheme assisted by navigation information to improve the accuracy of angle of arrival/angle of departure estimation while reducing training time.

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (2022)

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Article Computer Science, Information Systems

Performance Analysis of UAV-Enabled Over-the-Air Computation Under Imperfect Channel Estimation

Haejoon Jung et al.

Summary: This letter investigates the impact of imperfect channel state information (CSI) on the performance of AirComp. A closed-form expression of mean square error (MSE) is derived, showing that even in high SNR regime, imperfect CSI leads to MSE floors. The results emphasize the significance of accurate channel estimation.

IEEE WIRELESS COMMUNICATIONS LETTERS (2022)

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Article Engineering, Electrical & Electronic

Security Energy Efficiency Analysis of Analog Collaborative Beamforming With Stochastic Virtual Antenna Array of UAV Swarm

Haejoon Jung et al.

Summary: This paper investigates the use of collaborative beamforming and a virtual antenna array constructed by a swarm of unmanned aerial vehicles (UAVs) to extend transmission range and improve physical layer security. The analog collaborative beamforming with random VAA topologies can provide higher secrecy rates by creating noise-like signals at eavesdroppers. However, the increase in energy consumption and accurate phase estimation are important considerations.

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY (2022)

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Proceedings Paper Computer Science, Information Systems

Uplink Data Transmission Based on Collaborative Beamforming in UAV-assisted MWSNs

Aimin Wang et al.

Summary: This paper proposes an improved non-dominated sorting genetic algorithm-III (INSGA-III) to solve the optimization problem of UAV-assisted MWSN with collaborative beamforming, achieving improved data transmission rates, suppressed sidelobe levels, and reduced energy consumption of sensor nodes. The algorithm utilizes chaos initialization, average grade mechanism, and hybrid-solution generate strategy to effectively optimize the performance of the network. Simulation results show that the proposed algorithm outperforms other benchmark methods in solving the formulated multi-objective optimization problem.

2021 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) (2021)

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Article Engineering, Electrical & Electronic

Secure Transmission Using Linearly Distributed Virtual Antenna Array With Element Position Perturbations

Haejoon Jung et al.

Summary: This paper investigates a physical-layer security (PLS) algorithm using a linear virtual antenna array in mobile ad hoc networks as a promising alternative to cryptography-based solutions. The proposed analog cooperative beamforming (CB) scheme enhances secrecy performance by resolving angle-of-departure ambiguity issue in linear arrays.

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY (2021)

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Article Engineering, Electrical & Electronic