Lin Lifeng, Zhou Zijian, Jiang Peihe, Liu Sanjun, Wei Lai, Jiao Bingli
Shandong Vocational College of Industry, Zibo, 256414, China.
School of Electronics, Peking University, Beijing, 100871, China.
Sci Rep. 2025 Jul 28;15(1):27421. doi: 10.1038/s41598-025-12882-y.
This paper investigates a secure wireline telephone communication system that implements physical layer security (PLS) through artificial noise (AN) injection. The PLS-based telephone system strategically superimposes AN onto transmitted signals to prevent potential eavesdropping attempts along the twisted-pair line while enabling clean signal recovery at legitimate receivers through coordinated AN cancellation. Experimental results demonstrate its effectiveness against wiretapping, with implemented prototype circuits confirming the practical feasibility of our AN-based security approach while maintaining communication quality.
本文研究了一种通过注入人工噪声（AN）来实现物理层安全（PLS）的安全有线电话通信系统。基于PLS的电话系统策略性地将AN叠加到传输信号上，以防止沿双绞线线路的潜在窃听企图，同时通过协调的AN消除使合法接收端能够进行干净的信号恢复。实验结果证明了其对窃听的有效性，所实现的原型电路证实了我们基于AN的安全方法在保持通信质量的同时具有实际可行性。
