System safety performance evaluation method based on FDA camouflage spoofing

Abstract

The invention relates to physical layer information security techniques for wireless communications, and discloses a system safety performance evaluation method based on FDA camouflage spoofing. The method comprises the following steps: step 1, taking a carrier of a certain array element of an FDA antenna as a reference carrier frequency, adding different frequency offsets to carrier frequencies of other array elements on the basis of the reference array element carrier frequency, and then transmitting a signal carrying information through the FDA antenna; 2, enabling a legal user D to designa signal receiver of the legal user D according to the characteristics of a signal transmitter, and to perform information demodulation on the received signal; 3, enabling an eavesdropping user E to judge the signals received by the receiver, and to perform information demodulation on the received signals in an OFDM signal processing mode according to the characteristics of the received signals; and 4, respectively calculating the receiving signal-to-noise ratios of the legal user and the eavesdropping user according to the step 2 and the step 3, and then calculating the safety transmission rate of the system so as to evaluate the safety performance of the system. According to the invention, safe transmission of information is ensured.

Description

technical field [0001] The present invention relates to the physical layer information security technology of wireless communication, in particular to the technology of misleading the eavesdropping user's information reception according to the characteristics of the signal transmitted by the frequency control array antenna, and enhancing the security communication performance of the system, specifically the system security performance based on FDA camouflage and deception assessment method. Background technique [0002] The openness of the wireless communication channel makes the transmitted confidential information easily intercepted by eavesdroppers. At the same time, the continuous increase of cybercrime incidents on mobile terminals has also exposed the huge hidden dangers of information security in wireless communication networks. Therefore, information security issues have attracted much attention. [0003] Traditional encryption technology only provides computationa...

AI Technical Summary

Problems solved by technology

However, the beam of the phased array is only related to the direction and has no effect on the distance

Therefore, it can only bring system security in the direction dimension.

Images