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
Active Publication Date: 2021-06-04
FUZHOU UNIV
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Problems solved by technology
The traditional beamforming technology can only adjust the horizontal angle of the transmitted signal, so that the smart reflectors on the same vertical plane and different horizontal planes cannot accurately receive the information that needs to be forwarded, resulting in communication failure and difficult to guarantee the security of information
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[0048] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0049] Such as figure 1 As shown, this embodiment provides a wireless secure transmission method based on three-dimensional beamforming and intelligent reflection, including the following steps:
[0050] S1. Perform channel coding according to the channel state information obtained by the pilot, superimpose the artificial noise vector on the signal, and transmit the signal beam to the intelligent reflection plane through the antenna array of the transmitter.
[0051] S2...
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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.
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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Login to View More IPC IPC(8): H04B7/06H04B7/0426
CPCH04B7/0617H04B7/043Y02D30/70
Inventor 胡锦松赖靓玲蒋宛伶陈由甲郑海峰赵铁松
Owner FUZHOU UNIV