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arXiv · 1910.12535

Low-Complexity Leakage-based Secure Precise Wireless Transmission with Hybrid Beamforming

Tong Shen·Yan Lin·Jun Zou·Yongpeng Wu·Feng Shu·Jiangzhou Wang
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Abstract

In conventional secure precise wireless transmission (SPWT), fully digital beamforming (FDB) has a high secrecy performance in transmit antenna system, but results in a huge RF-chain circuit budget for medium-scale and large-scale systems. To reduce the complexity, this letter considers a hybrid digital and analog (HDA) structure with random frequency mapped into the RF-chains to achieve SPWT. Then, a hybrid SPWT scheme based on maximizing signal-to-leakage-and-noise ratio (SLNR) and artificial-noise-to-leakage-and-noise ratio (ANLNR) (M-SLNR-ANLNR) is proposed. Compared to the FDB scheme, the proposed scheme reduces the circuit budget with low computational complexity and comparable secrecy performance.

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Tong Shen, Yan Lin, Jun Zou, Yongpeng Wu, Feng Shu, Jiangzhou Wang. 2019-10-28. Low-Complexity Leakage-based Secure Precise Wireless Transmission with Hybrid Beamforming. https://arxiv.org/abs/1910.12535

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