Photonic-Assisted Microwave Quantum-Noise Randomized Cipher Generation for Signal Security of Wireless Communications
Photonic-Assisted Microwave Quantum-Noise Randomized Cipher Generation for Signal Security of Wireless Communications
复制标题
用于无线通信信号安全的光子辅助微波量子噪声随机密码生成
DOI：
10.1117/12.2648630
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
and Fumio Futami
中科院分区：
文献类型：
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作者：
Ken Tanizawa;and Fumio Futami
安全增强是未来6 G无线网络的主要挑战。在这项研究中，我们介绍了一个密钥加密系统，它利用多级信令，对无线截获的微波信号的安全性。该系统通过基于零差过程的光-微波频率转换实现了微波频率下的量子噪声信号屏蔽，从而提供了高的信号安全性。我们展示了量子噪声随机相移键控调制/正交幅度调制密码产生的实验演示，在~GHz的频率，通过强度调制/直接检测模拟中频光纤传输。该系统同时实现了微波信号传输的光纤链路和信号加密的基础上充分的量子噪声信号掩蔽的无线通信系统。
Security enhancement is a major challenge in future 6G wireless networks. In this study, we have introduced a symmetric-key encryption system, which utilizes multilevel signaling, for the security of microwave signals against wireless interception. The system achieves quantum-noise signal masking at microwave frequencies via optical-tomicrowave frequency conversion based on the homodyne process, thus providing high signal security. We show experimental demonstrations of quantum-noise randomized phase-shift keying modulation/quadrature amplitude modulation cipher generation at a frequency of ~GHz via the intensity modulation/direct detection analog intermediate frequency over fiber transmission. The proposed system simultaneously achieves microwave signal delivery over a fiber link and signal encryption based on sufficient quantum-noise signal masking for wireless communication systems.