⚡ 本页包含 AI 生成的分析内容，仅供参考
本论文提出了一种28GHz防窃听发射机，通过频率分集子阵列、秘密相位键和天线子集调制，首次同时防御主瓣和离轴窃听者。合法接收机的接收质量几乎不受影响（EVM约6%），而直流功耗仅比标准相控阵发射机增加2%。
Abstract Prior works on physical-layer eavesdropping protection only addressed off-axis Eve. This paper presents the first TX to defend against both main-beam and off-axis Eves. Incorporating three key components: frequency-diverse sub-arrays, secret phase keys, and antenna subset modulation, the 28GHz TX demonstrates highly scrambled constellations for all Eves, while the legitimate RX’s reception remains intact (~6% EVMrms), with only 2% DC power overhead compared to a standard phased-array TX. Physical-layer security has attracted growing interest within the wireless communication community [1-14]. It can be either combined with conventional cryptography for enhanced, “two-factor” defenses [15] or used to reduce encryption workload in energy-constrained systems [16,17]. The latter is particularly attractive for mm-wave communication, where real-time, multi-Gb/s encryption/decryption incurs significant power consumption and
Qiang Zhou, Yumin Su, Hao Guo, Yaolong Hu, Kaiyuan Yang, Taiyun Chi
Rice University, Houston, TX