Wireless secure transmission method and system based on three-dimensional beam forming and intelligent reflection

A technology of three-dimensional beam and transmission method, which is applied in the direction of radio transmission system, transmission system, diversity/multi-antenna system, etc., can solve problems such as communication failure and difficulty in ensuring information security, and achieve improved security, enhanced reliability, The effect of improving accuracy
CN112910527AActive Publication Date: 2021-06-04FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2021-06-04

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Abstract

The invention relates to a wireless secure transmission method and system based on three-dimensional beam forming and intelligent reflection, and the method comprises the following steps: S1, carrying out channel coding according to channel state information obtained by a pilot frequency, superposing an artificial noise vector on a signal, and transmitting a signal beam to an intelligent reflection plane through an antenna array of a transmitter; and S2, according to channel state information obtained by pilot frequency, changing a reflection phase angle of each reflection unit on the intelligent reflection plane through digital coding, so that after the signal reaching the intelligent reflection plane is reflected, the phase of the signal is adjusted, and the signal is transmitted to an expected receiver. The method and the system are beneficial to improving the accuracy, the reliability and the safety of wireless communication.
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Description

technical field

[0001] The present invention relates to the technical field of wireless communication, in particular to a wireless secure transmission method and system based on three-dimensional beamforming and intelligent reflection. Background technique

[0002] In the coming era of the sixth generation of wireless communication technology, the new generation of communication technology will increase the amount of communication between users, and will also bring about a large increase in user data, which also puts forward higher requirements for the security of user information . Physical layer security utilizes the characteristics of wireless transmission to increase the signal error rate for eavesdroppers. Compared with high-level security technology that is highly dependent on computational complexity, physical layer security technology is not afraid of wiretapping machines with powerful computing capabilities, which also makes it an emerging hot technology that can b...

Claims

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