A signal transmission method, device and electronic equipment

Abstract

Embodiments of the present invention provide a signal transmission method, device, and electronic equipment. The above method includes: performing quadrature amplitude modulation on the bit information stream to be transmitted to obtain a symbol vector to be encoded; Satisfied relational expression, determine the disturbance vector that satisfies the relational expression with the symbol vector to be encoded, as the target disturbance vector, the relational expression is: the relationship between the symbol vector and the disturbance vector established based on the spherical decoding parameters and the precoding matrix formula; use the target disturbance vector to precode the coded symbol vector to obtain the signal to be sent; send the signal to be sent. By adopting the method provided by the embodiment of the present invention, all the energy of the sending end can be used to transmit effective signals, without the need to transmit artificial noise unrelated to the effective signal; further, the receiving end receives the signal sent by the sending end without artificial noise , to improve the performance of receiving effective signals at the receiving end.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a signal transmission method, device and electronic equipment. Background technique [0002] In the field of wireless communication, due to the open nature of wireless channels, security issues in wireless communication have received more and more attention. Among them, the physical layer security technology of wireless communication guarantees the security of transmission based on the characteristics of wireless channels. [0003] The current physical layer security technology mainly includes the following aspects: on the one hand, the research on the security capacity from the perspective of information theory, such as the calculation of the security capacity in different scenarios; on the other hand, the design of security schemes, such as combining physical layer security with The combination of channel coding technology, or the combination of physical...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a signal transmission method, device, electronic equipment, and storage medium to solve the problem of low performance of receiving effective signals at the receiving end caused by the existing artificial noise technology

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