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Ray tracing channel modeling method for intelligent metasurface wireless communication

A ray tracing and wireless communication technology, applied in the field of channel modeling, can solve problems such as research that cannot be applied to RIS location deployment, universality needs to be improved, and it does not meet the half-wavelength size design of RIS units.

Pending Publication Date: 2022-06-03
SOUTHEAST UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a deterministic channel modeling method for intelligent metasurface wireless communication, so as to solve the problem that the existing method does not meet the general half-wavelength size design of RIS units and cannot be applied to most existing static ray tracing simulation software Among them, the universality needs to be improved and the existing methods cannot be applied to the technical problems of the research on the location deployment of RIS in the indoor environment

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  • Ray tracing channel modeling method for intelligent metasurface wireless communication
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  • Ray tracing channel modeling method for intelligent metasurface wireless communication

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Embodiment 1

[0053] see Figure 1-Figure 5 , this embodiment provides a deterministic channel modeling method for intelligent metasurface wireless communication, the channel modeling method includes the following steps:

[0054] Step 1. Determine the environment layout and materials applied in the environment, and draw the simulation environment in the ray tracing software;

[0055] Specifically, in this embodiment, the model adopts the deterministic channel modeling method based on ray tracing. First, the application scenario is determined as indoor (Indoor), the specific room size is 10m×8m×3m, and the center of the room has a length of 8m. In order to create a non-line-of-sight environment, the center of the bottom of the wall with the smart hypersurface in the room is the origin of the whole scene. The walls on both sides are provided with 6m-long glass windows, and the bottom wall is provided with a 1m-wide glass window. , a door with a height of 2.7m. At the same time, it is determ...

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Abstract

The invention discloses a ray tracing channel modeling method for intelligent metasurface wireless communication. The method comprises the following steps: setting an application scene; deployment of the RIS and implementation of a regulation and control mode; analyzing the receiving power distribution of the non-line-of-sight scene; analyzing the angle power spectrum density; and specifically analyzing the change of the channel capacity along with the change of the transmitting power, the RIS unit number and the RIS deployment position. The ray tracing-based RIS channel deterministic model established by the invention can be used for static ray tracing simulation software, supports deployment of intelligent metasurfaces of any scale at any position in a scene, and enriches ray tracing modeling methods of the intelligent metasurfaces; the channel characteristic analysis of the simulation result has guiding significance for the application and deployment of the RIS in an indoor scene.

Description

technical field [0001] The invention belongs to the technical field of channel modeling, and in particular relates to a ray tracing channel modeling method for intelligent metasurface wireless communication. Background technique [0002] The sixth-generation mobile communication will continue to expand full-spectrum applications. Millimeter Wave (mmWave) frequency bands and terahertz (THz) frequency bands have become research hotspots due to their ultra-large bandwidth that can be allocated. However, serious problems caused by molecular absorption Path loss greatly limits its propagation distance. Reconfigurable intelligent surface (RIS) has become a potential solution to combat the propagation distance problem of high-frequency communication due to its unique characteristic of tunable electromagnetic propagation environment. [0003] At present, the research on RIS mainly focuses on geometric random channel modeling and channel characteristic evaluation of RIS channels. B...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391H04B17/40
CPCH04B17/3912H04B17/40Y02D30/70H04B7/04013G06T15/06
Inventor 王承祥黄佳玲孙颖卓黄杰郑福春
Owner SOUTHEAST UNIV