Signal transmission method and device and electronic equipment

Abstract

The embodiment of the invention provides a signal transmission method and device and electronic equipment, and the method comprises the steps: carrying out the quadrature amplitude modulation of a to-be-transmitted bit information flow, and obtaining a to-be-coded symbol vector; on the basis of a pre-established relational expression needing to be met between a symbol vector and a disturbance vector, the disturbance vector meeting the relational expression with the symbol vector to be coded is determined to serve as a target disturbance vector, and the relational expression is the relational expression between the symbol vector and the disturbance vector established on the basis of the sphere decoding parameters and the precoding matrix; pre-coding the symbol vector to be coded by using the target disturbance vector to obtain a to-be-transmitted signal; and transmitting the to-be-transmitted signal. By adopting the method provided by the embodiment of the invention, the energy of the sending end can be completely used for transmitting effective signals without transmitting artificial noise irrelevant to the effective signals; furthermore, the signals received by the receiving end and sent by the sending end do not contain artificial noise any more, and the performance of receiving effective signals by the receiving end is improved.

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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