Wireless Security with Beamforming Technique
Yuanrui Zhang

TL;DR
This thesis investigates physical layer wireless security using beamforming, proposing an exposure region approach to mitigate eavesdropping, analyzing array configurations, and optimizing security performance through experiments and modeling.
Contribution
It introduces an exposure region based beamforming method for physical layer security, analyzing array geometries and configurations to enhance security against eavesdroppers.
Findings
Exposure region effectively characterizes secrecy performance.
Array geometry impacts security, with optimization improving protection.
Mutual coupling influences beamforming security performance.
Abstract
This thesis focuses on the wireless security in the physical layer with beamforming technique. One of the emerging areas is the security enhancement in the physical layer, which exploits the intrinsic properties of the wireless medium. Beamforming, which has been proved to have many advantages, can also be applied to enhance the wireless security. One of the most common threats, i.e., passive eavesdropping, is addressed in this thesis. To reduce the risk of leaking information to the eavesdroppers, the physical region where the transmission is exposed to eavesdropping has been studied. In this thesis, the exposure region based beamforming technique is proposed to combat the threat from the randomly located eavesdroppers in a fading channel. In this system model, the large-scale path loss and a general Rician fading channel model are considered. The exposure region is established to…
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Taxonomy
TopicsWireless Communication Security Techniques · Cooperative Communication and Network Coding · Advanced MIMO Systems Optimization
