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Terahertz MIMO channel modeling method and system based on measured data

A technology based on measured data and terahertz, applied in the field of terahertz MIMO channel modeling methods and systems, can solve the problems of single simulation scenarios and complex deterministic channel models, and achieve low-cost effects

Active Publication Date: 2022-02-08
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The deterministic channel model based on ray tracing is very complex, not suitable for the design of terahertz communication system, and the simulation scene is too single (such as applied to indoor fixed arrangement or Kiosk short-range communication system)

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  • Terahertz MIMO channel modeling method and system based on measured data
  • Terahertz MIMO channel modeling method and system based on measured data
  • Terahertz MIMO channel modeling method and system based on measured data

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0047] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related Other details are not relevant to the invention.

[0048] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0049] Here, ...

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Abstract

The invention provides a terahertz MIMO channel modeling method and system based on measured data. The method comprises the following steps: calculating a diffraction limit resolution of an optical system based on center frequency of a to-be-measured terahertz frequency band, a preset communication distance between a transmitting end and a receiving end, and the number of virtual antennas of the receiving end, so that distances between adjacent transmitting antennas in a transmitting end antenna array of an MIMO channel model and distances between adjacent receiving antennas in a receiving end antenna array of the MIMO channel model are determined; using single-input single-output channel test equipment to test sight distance channel frequency response between each transmitting antenna of the transmitting end and each array unit of the receiving end for several times, so that a measured MIMO channel matrix is obtained; obtaining a performance parameter index of an MIMO channel based on the measured MIMO channel matrix; calculating channel impact response based on the MIMO channel matrix, and obtaining time-frequency relevance of adjacent channels based on the channel impact response; and obtaining channel path loss based on the time-frequency relevance, and obtaining a frequency selectivity result of a terahertz channel based on the channel path loss.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for modeling terahertz MIMO channels based on measured data. Background technique [0002] Following the large-scale commercial use of 5G communication technology, the global industry has carried out research on 6G communication technology. As a wireless communication technology in the terahertz frequency band (95GHz-3THz) for the sixth-generation mobile communication network services, it has become a research hotspot in the academic circle. [0003] In wireless mobile communication, all information must be transmitted through wireless channels. The propagation characteristics of radio waves and wireless channel modeling, as the only means to realize wireless system planning, are important foundations and prerequisites for communication system architecture design and new technology verification. However, wireless channels are highly random and difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391H04B10/90H04B7/0413
CPCH04B17/3912H04B10/90H04B7/0413
Inventor 王卫民许话吴永乐刘元安
Owner BEIJING UNIV OF POSTS & TELECOMM
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