Feature Correlation Based RF Fingerprinting Identification for Walkie-Talkies Push-to-Talk Communications  

作　　者：Renhe Fan Longcheng Li Pengfei Sun Yang Yu Gang Wu 

机构地区：[1]National Key Laboratory of Wireless Communications,Univer-sity of Electronic Science and Technology of China,Chengdu 611731,China [2]Communication Research Center,Harbin Institute of Technol-ogy,Harbin 150080,China

出　　处：《Journal of Communications and Information Networks》2025年第1期57-70,共14页通信与信息网络学报(英文)

摘　　要：Walkie-talkies play a key role in publicsafety and military communications.To counter thesecurity threats posed by counterfeiting and illegal use,this paper proposes a radio frequency(RF)fingerprintingmethod for walkie-talkies based on interpretable fea-tures and multi-layer perceptron(MLP).By extractinginterpretable features in time,frequency,and statis-tical domains affected by different RF impairmentsand performing correlation analysis and dimensionalityreduction,it ensures that the acceptable low complexityrequirements of walkie-talkie equipment are maintainedwhile the recognition capability is preserved.The mea-sured results show that the recognition accuracy of themethod can reach 96.5%,which has the advantages ofbeing efficient,stable and interpretable.This researchprovides a low complexity and reliable physical layersecurity solution for identifying legitimate and illegitimatewalkie-talkies,which can be further used to guide theengineering implementation and application of RF finger-print identification modules.

关 键 词：walkie talkie RF fingerprinting inter-pretable feature MLP physical layer security 

分 类 号：TN92[电子电信—通信与信息系统]