Wave beam domain anti-interference and anti-interception communication method based on information metasurface

Abstract

The invention relates to a wave beam domain anti-interference and anti-interception communication method and device based on an information metasurface, computer equipment and a storage medium. The method comprises the following steps: taking maximization of the transmission rate of an anti-interference and anti-interception communication system as an objective function, taking receiving signal to interference plus noise ratio-greater than-threshold information, and normalization of the receiving signal to interference plus noise ratio-greater than-threshold information and the amplitude of each reflection unit of an intelligent information metasurface as constraint conditions, and taking a base station active transmitting beam forming weight vector and an intelligent information metasurface reflection beam forming vector as optimization variables, constructing an optimization model to be solved, and obtaining the optimal beam forming vector of the communication system through solving. According to the invention, the reconfigurable capability of a wireless channel environment is realized by utilizing the intelligent reflecting surface formed by the information programmable metamaterial, so that a wireless communication channel becomes flexible and controllable, and the improvement of anti-interference and anti-interception communication capability is realized while the transmission rate and the communication quality are improved and the transmitting power is reduced.

Description

technical field [0001] The present application relates to the technical field of computer communication, in particular to an information metasurface-based beam domain anti-jamming and anti-interception communication method, device, computer equipment and storage medium. Background technique [0002] Under the conditions of information warfare, controlling information rights is one of the key factors that determine the outcome of the battlefield, and military wireless communication systems are the primary target of enemy attacks and destruction in modern and future warfare. In the battlefield environment facing future information confrontation, communication jamming and anti-jamming have become the focus and difficult issues of information warfare. In recent years, with the development of technologies such as signal processing and chips, the capabilities of existing communication jamming equipment have become stronger and stronger. For example, the American EA-18G "Growler" e...

AI Technical Summary

Problems solved by technology

Although the existing anti-interception scheme is feasible, it will significantly increase the transmit power of the base station, and will also increase the computational complexity of the base station

Summarizing the existing anti-interference and anti-interception technologies, it can be found that the existing technical means are only passively adapted to the electromagnetic environment, and that the wireless channel environment has a negative effect on both communication parties. The core idea is to design better transmitters and receivers to improve the system. Anti-jamming / anti-interception performance, relying on "patch" and "plug-in" security enhancement solutions to achieve security protection, cannot make full use of the innate initiative and first-mover advantages of the communication party

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