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D2D communication throughput maximization method and device based on intelligent reflecting surface

A reflective surface and high throughput technology, applied in the field of D2D communication, can solve problems such as gaps and no D2D communication

Pending Publication Date: 2020-11-17
深圳恩步通信技术有限公司
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method and device for maximizing the throughput of D2D communication based on smart reflective surfaces, so as to solve the problem of D2D communication without smart reflective surfaces in the prior art and existing problems. There is a certain gap between the system and the actual application

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  • D2D communication throughput maximization method and device based on intelligent reflecting surface

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Embodiment Construction

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0049] A specific method for maximizing D2D communication throughput based on a smart reflective surface provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0050] Such as figure 1 As shown, the method for maximizing the D2D communication throughput based on the smart reflector provided in the embodiment of the present application, the D2D communication system based on the smart reflector inclu...

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Abstract

The invention relates to a D2D communication throughput maximization method and device based on an intelligent reflecting surface. A D2D communication system based on the intelligent reflecting surface comprises cell users, D2D communication pairs, a base station and an intelligent reflecting surface arranged in a cell, wherein the D2D communication pair comprises a D2D sending end and a D2D receiving end; the intelligent reflecting surface is provided with a plurality of reflecting elements, and a phase shift matrix is designed according to the precision and the number of the reflecting elements. The method comprises the following steps: acquiring cell user throughput and D2D communication link throughput; constructing a maximum throughput optimization model according to the cell user throughput and the D2D communication link throughput; and solving an optimal parameter of the maximum throughput optimization model. According to the invention, the intelligent reflecting surface is introduced into a D2D (Device to Device) communication system, and the beamforming of the base station, the power distribution of the base station and the D2D transmitting end and the phase shift matrix of the intelligent reflecting surface are optimized, so that the communication quality of cellular users is ensured while the throughput of D2D communication is maximized.

Description

technical field [0001] The invention belongs to the technical field of D2D communication, and in particular relates to a method and a device for maximizing D2D communication throughput based on an intelligent reflective surface. Background technique [0002] The IRS consists of a large number of passive reflective elements, each of which can independently change the signal to a specific amplitude and phase shift, thereby intelligently configuring the wireless propagation environment. IRS was the first to do research on the minimization of base station transmission power in a multi-input single-input (MISO) wireless communication system, and the semi-positive definite relaxation method (Semidefinite Relaxation, SDR) was proposed to optimize the phase shift matrix of IRS. Since then, a lot of research has applied IRS to various wireless communication scenarios, for example, using IRS to reduce the interference between multiple cells, improve the communication quality of cell e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/70H04B7/06H04B15/00H04B17/391
CPCH04W4/70H04B7/0617H04B15/00H04B17/3912H04B7/04013
Inventor 唐军陈文宇何春龙谭娟
Owner 深圳恩步通信技术有限公司
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