Single-carrier communication transmitter fingerprint estimation and authentication method based on approximate solution

Abstract

The invention relates to a single-carrier communication transmitter fingerprint estimation and authentication method based on an approximate solution. According to the method, based on pure real number and pure imaginary number subblocks respectively added with cyclic prefixes, a multipath channel impulse response is estimated according to the pure real number subblock, the IQ imbalance parametercombined estimation of the transmitter is carried out according to the linear approximate magnification times of a power amplifier, channel impulse response estimation and the pure imaginary number subblocks, and the nonlinear B-Spline neural network model coefficient estimation of the transmitter is carried out according to the channel impulse response and IQ imbalance parameter combined estimation. Similar factor features are extracted from the nonlinear model coefficient estimation, a feature vector of a transmitter fingerprint is estimated with the IQ imbalance parameter combined estimation and is used for the identification or confirmation of the identity of a communication device, and the method can be applied to the field of cross-layer high-strength authentication and anti-counterfeiting of a single-carrier cooperative communication device.

Description

technical field [0001] The invention relates to an approximate solution-based fingerprint estimation and authentication method for a single-carrier communication transmitter. Background technique [0002] With the continuous growth of people's demand for communication mobility, socialization and dataization, human beings have ushered in the era of big data and artificial intelligence. The emergence of the fifth-generation mobile communication technology has brought hope to the application and development of the Internet of Things, but the attacks and threats against the Internet of Things have never stopped, and network security issues have always attracted attention. As the bottom layer of the open communication system interconnection reference model, the physical layer is the foundation of the entire communication system, so the information security of the physical layer is particularly important. As one of the foundations of network security services, identity authentica...

AI Technical Summary

Problems solved by technology

The emergence of the fifth-generation mobile communication technology has brought hope to the application and development of the Internet of Things, but the attacks and threats against the Internet of Things have never stopped, and network security issues have always attracted attention

These methods have the problem of low recognition and are not suitable for wide application

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