System safety performance evaluation method based on FDA camouflage spoofing

A technology of system security and performance, applied in the field of information security at the physical layer of wireless communication, can solve problems such as ineffective distance

Active Publication Date: 2020-01-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • System safety performance evaluation method based on FDA camouflage spoofing
  • System safety performance evaluation method based on FDA camouflage spoofing
  • System safety performance evaluation method based on FDA camouflage spoofing

Examples

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Comparison scheme
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Embodiment

[0074] see figure 2 , the present invention is based on the system safety performance evaluation method of FDA's disguise and deception, comprising the following steps:

[0075] Step 1: Use the carrier frequency of a certain element of the FDA antenna as the reference carrier frequency, and add different frequency offsets to the carrier frequency of other elements, and then transmit the signal carrying information through the FDA antenna go out.

[0076] In this step, the FDA antenna adopts a uniform linear FDA antenna, such as image 3 As shown, and the first element of the antenna array is used as the reference element. In this way, the transmitted signal of the nth antenna element is expressed as:

[0077]

[0078] Among them, P S is the total transmission power of the signal transmitter; is the transmitted confidential information symbol; f n = f 0 +nΔf is the transmitting frequency of the nth antenna element; t represents time; N is the total number of antenna...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): H04B17/336
CPCH04B17/336
Inventor 王文钦姬士龙陈慧张顺生廖轶
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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