Prototype of Secure Wire-Line Telephone

2024/08/24 by Lifeng Lin, Lin, Lifeng, Zijian Zhou +8
Engineering · #Antenna Design and Analysis #Telecommunications and Broadcasting Technologies #RFID technology advancements

paper · pdf · doi:10.48550/arxiv.2408.13435

Abstract

This paper presents a secure wire-line telephone system that employs physical layer security (PLS) to protect against wiretapping. The system generates artificial noise (AN) in both transmission directions and uses a telephone hybrid circuit to effectively suppress the AN for the purpose of secure communication. Furthermore, we analyze the secrecy capacity of the system and evaluate its performance through theoretical analysis and practical experiments. The results demonstrate that the proposed system can significantly enhance communication security while preserving the integrity of legitimate signals. The results also validate that the proposed system is a robust and effective solution for securing wire-line telephone communications.

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