A method of generating signal frequency for two-dimensional message authentication data transmission
A technology for message authentication and data transmission, applied in the field of telecommunications, can solve problems such as reducing the transmission data rate, and achieve the effects of improving the transmission data rate, strong concealment and anti-reconnaissance, and strong flexibility
Active Publication Date: 2021-07-27
SHENYANG LIGONG UNIV
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Problems solved by technology
The differential frequency hopping communication technology can only transmit one data symbol at the same time. When the message authentication data needs to be transmitted, the message data symbol and the message authentication data symbol need to be transmitted sequentially over time according to the transmission protocol, which will reduce the transmission data rate
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[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0032] The two-dimensional message authentication data transmission process is as follows: figure 1 shown. The one-dimensional data is baseband data to be transmitted, and the baseband data to be transmitted is processed by an authentication algorithm to obtain two-dimensional data. The frequency hopping sequence parameters are obtained by one-dimensional data through serial-to-parallel conversion and G function mapping, the frequency difference control parameters of the current hopping signal are obtained by two-dimensional data mapping, and the current hopping signal frequency is generated by mapping the carrier frequency and frequency difference control parameters from...
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The invention provides a method for generating a signal frequency for two-dimensional message authentication data transmission, which relates to the technical field of electrical communication. In the present invention, one-dimensional data is obtained through an authentication algorithm to obtain two-dimensional data, one-dimensional data is obtained through serial-to-parallel conversion and G function to obtain frequency hopping sequence parameters, the two-dimensional data is mapped to obtain the frequency difference control parameters of the current hopping signal, and the frequency hopping sequence parameters are mapped to The carrier frequency and the frequency difference control parameters generate the current hopping signal frequency, and the current hopping signal frequency generates a transmission signal for transmission; after receiving the signal, use FFT to obtain the instantaneous frequency parameter of the signal; the instantaneous frequency is passed through G ‑1 Function demapping and parallel-to-serial conversion obtain one-dimensional data, determine the frequency difference control parameters for instantaneous frequency, demodulate two-dimensional data, use one-dimensional and two-dimensional data for authentication analysis, and determine the authenticity and integrity of the transmission process. This method has strong concealment and anti-reconnaissance for non-cooperative parties to find out the information data carried by the change between adjacent hopping frequencies.
Description
technical field [0001] The invention relates to the technical field of electrical communication, in particular to a method for generating signal frequencies for two-dimensional message authentication data transmission. Background technique [0002] The wireless communication system that uses electromagnetic waves to transmit information has the advantages of cross-regional and all-weather, but the open transmission environment of wireless signals also poses challenges to the reliability of the communication process. In order to ensure the information security in the process of signal transmission, various covert communication and message authentication technologies have been studied in depth. Covert communication in the traditional sense belongs to the category of information hiding, which is to secretly hide information in public information in the form of images, sounds, videos or general text documents. By combining with authentication and encryption technology, it provi...
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IPC IPC(8): H04B1/713H04W12/106H04W12/10
CPCH04B1/713H04W12/106
Inventor 冯永新杨秀杰吴瑞睿钱博
Owner SHENYANG LIGONG UNIV