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Method and device for improving security rate of SWIPT system, terminal and storage medium

A security rate and system security technology, applied in devices, terminals and storage media, a method to improve the security rate of the SWIPT system, can solve the problem of not being able to guarantee the security rate of the SWIPT system

Active Publication Date: 2021-09-10
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] The embodiment of the present invention provides a method, device, terminal and storage medium for improving the security rate of the SWIPT system, so as to solve the problem that the security rate of the SWIPT system cannot be guaranteed when the user collects the energy signal and decodes the information signal at the same time

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  • Method and device for improving security rate of SWIPT system, terminal and storage medium
  • Method and device for improving security rate of SWIPT system, terminal and storage medium

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Embodiment Construction

[0092] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0093] In order to make the purpose, technical solution and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0094] Wireless energy-carrying communication transmission uses the characteristics that wireless radio frequency signals can carry information and energy at the same time, and simultaneously receives ...

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Abstract

The invention provides a method and device for improving the security rate of an SWIPT system, a terminal and a storage medium. The method comprises the following steps: receiving a noise signal and an information signal sent by a base station; constructing a safety rate model of the SWIPT system based on the noise signal, the information signal, the base station output power, the base station beam forming vector, the phase shift vector of the intelligent reflecting surface and the power segmentation coefficient; converting the safety rate model to obtain three convex problems equivalent to the safety rate model; and performing global maximization iteration processing on the three convex problems according to an energy threshold value, base station transmitting power, a power division coefficient threshold value and a phase shift threshold value of the intelligent reflecting surface to obtain the maximum safety rate of the SWIPT system. According to the method, the base station transmits the noise signal while transmitting the information signal, and the safety rate of the physical layer of the system is improved by optimizing the beamforming vector of the base station, the phase shift vector of the intelligent reflecting surface and the power division coefficient.

Description

technical field [0001] The present invention relates to the technical field of physical layer security of wireless communication, in particular to a method, device, terminal and storage medium for improving the security rate of a SWIPT system. Background technique [0002] Simultaneous Wireless Information and Power Transfer (SWIPT) is a new type of wireless communication, which can transmit information and energy at the same time, that is, it can also provide energy for wireless devices while exchanging information with wireless devices. In order to avoid the influence of obstacles between the base station and the user on wireless communication, an intelligent reflecting surface (Intelligent Reflecting Surfaces, IRS) is generally set between the base station and the user. The smart reflective surface intelligently reconfigures the wireless propagation environment by integrating a large number of low-cost passive reflective elements on the plane, thereby improving the perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/22H04W52/26H04W52/46H02J50/20H04B7/06
CPCH04W28/22H04W52/267H04W52/46H02J50/20H04B7/0617H04B7/04013
Inventor 李保罡司福强
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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