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An energy-efficient beamforming method for super-resolution in large-scale antenna arrays

A technology of large-scale antenna and beam synthesis, applied in the field of wireless communication, can solve the problems of synthesis, high computational complexity and low accuracy, and achieve the effect of reducing complexity and meeting transmission requirements

Active Publication Date: 2021-08-03
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

[0007] Purpose of the invention: Aiming at the problem that the existing beam synthesis method cannot synthesize beams of any width under the condition of any antenna shape, and the calculation complexity is high and the accuracy is low, the present invention proposes a high-energy-efficiency super-resolution method in a large-scale antenna array beamforming method

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  • An energy-efficient beamforming method for super-resolution in large-scale antenna arrays
  • An energy-efficient beamforming method for super-resolution in large-scale antenna arrays
  • An energy-efficient beamforming method for super-resolution in large-scale antenna arrays

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Embodiment 1

[0104] refer to figure 1 , this embodiment provides an energy-efficient beamforming method for super-resolution in a large-scale antenna array, which specifically includes the following steps:

[0105] Step S1: Obtain the beam gain of the coverage area by obtaining the width of the coverage area, as follows:

[0106] Step S1.1: Number M of horizontal antennas passing through the antenna array h , the number of vertical antennas M in the antenna array v , the total number of antennas in the antenna array can be known, specifically:

[0107] M=M h m v

[0108] Among them: M h is the number of horizontal antennas in the antenna array, M v is the number of vertical antennas in the antenna array.

[0109] According to the total number of antennas in the antenna array, the antenna steering vector of the antenna array is determined, specifically:

[0110]

[0111] Where: M=M h m v ,

[0112] is the antenna steering vector of the antenna array, M h is the number of...

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Abstract

The invention discloses a super-resolution high-energy-efficiency beam synthesis method in a large-scale antenna array, which includes the following steps: S1: obtain the beam gain of the coverage area by obtaining the width of the coverage area; The beamforming optimization equation under the criterion; S3: the beamforming optimization equation uses a convex optimization method to determine the initial beamforming vector of the beamforming; S4: according to the beam gain of the coverage area, the real gain and the complex gain of the beam are introduced , determine the Riemann optimization equation under the MMSE criterion; S5: use the initial beamforming vector of the beamforming as the initial solution of the Riemann optimization equation, and use the conjugate gradient algorithm to determine the final beamforming vector. The invention can approach the theoretical beam more accurately, so as to meet the transmission requirements of actual data. At the same time, by controlling the beam width to control the vector, a beam of any shape and width can be designed under an array of any shape.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an energy-efficient beam synthesis method for super-resolution in a large-scale antenna array. Background technique [0002] Massive MIMO technology brings larger system capacity and higher communication reliability to wireless communication. In massive MIMO technology, more antennas are deployed at the receiving end and the transmitting end. This configuration makes the antenna system have a higher degree of spatial freedom, so the transmitting end and the receiving end have strong capabilities, and have directivity and The flat beam is used to detect user information, transmit channel control signaling, transmit user data and other services. Using the phase adjustment capability and amplitude adjustment capability of the antenna in the massive MIMO system beamforming can achieve wider coverage and stronger multiplexing / diversity capabilities than traditional MIM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/08
CPCH04B7/0413H04B7/0868Y02D30/70
Inventor 黄永明任东明范文哲
Owner SOUTHEAST UNIV
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