Method for establishing three-dimensional vehicle-mounted large-scale virtual antenna array

A technology of virtual antenna and establishment method, applied in the field of channel model, to achieve the effect of important theoretical and application value

Inactive Publication Date: 2019-11-08
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for establishing a large-scale virtual antenna array for three-dimensional vehicles to solve the communication problem between vehicles in the 5G communication system

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  • Method for establishing three-dimensional vehicle-mounted large-scale virtual antenna array
  • Method for establishing three-dimensional vehicle-mounted large-scale virtual antenna array
  • Method for establishing three-dimensional vehicle-mounted large-scale virtual antenna array

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below through specific embodiments.

[0035] The present invention provides a method for establishing a large-scale virtual antenna array for a three-dimensional vehicle, and its innovative point is that it specifically includes the following steps:

[0036] (1) Assuming that there are a large number of directional antennas on each plane of the car, the car with a large number of directional antennas on each plane is constructed as an initial virtual antenna array, such as figure 1 As shown, the initial antenna array is equivalent to a cuboid array. In the initial virtual antenna array, the spherical wave assumption is used instead of the plane wave assumption. The impulse response of the channel is related to the complex amplitude and the steering vector of the antenna array. Then the complex amplitude of the channel is related to The impulse response is expressed as:

[0037] ...

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Abstract

The invention relates to a method for establishing a three-dimensional vehicle-mounted large-scale virtual antenna array. The method specifically comprises the following steps: (1) constructing an initial virtual antenna array; (2) numbering five surfaces except the bottom surface in the virtual antenna array; (3) a transmitting end in the virtual antenna array can transmit signals to a receivingend in all directions, and a closed solution of a steering vector is solved according to the number of each surface along with the number change of antenna array elements; (4) solving the spatial cross correlation between the first antenna and the second antenna; and (5) materializing the initial virtual antenna array, and completing the establishment of the virtual antenna array for the three-dimensional vehicle. The antenna array can accurately describe the vehicle-mounted mobile communication environment in the 5G communication system, convenience is brought to vehicle-mounted mobile communication. Meanwhile, important theoretical reference and design analysis basis are provided for channel measurement, modeling and estimation of the 5G wireless communication system. The very importanttheoretical and application value is achieved.

Description

technical field [0001] The invention relates to the technical field of channel models, in particular to a method for establishing a large-scale virtual antenna array for a three-dimensional vehicle. Background technique [0002] In recent years, with the continuous improvement of spectrum utilization, multiple-input multiple-output (MIMO) technology has been introduced into the design of many wireless communication systems. Massive MIMO mainly refers to the installation of hundreds of antennas at the transmitter and receiver, which can meet the needs of 5G vehicle wireless communication. In wireless communication systems, massive MIMO can improve spectrum utilization and energy utilization, and has broad application prospects compared with traditional MIMO wireless communication systems. In the 5G wireless communication network, vehicle-to-vehicle (V2V) communication under massive MIMO is a research hotspot, and many research groups in the world have carried out in-depth re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04B7/0404H04W4/46
CPCH04B7/0404H04B7/0413H04W4/46
Inventor 江浩周杰
Owner NANJING UNIV OF INFORMATION SCI & TECH
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