Design method of UAV millimeter-wave beamforming based on partially connected antenna array
A technology of beamforming and design method, which is applied in the field of UAV millimeter wave beamforming design, can solve the problems of designing beamforming and not being able to directly use angle domain information, and achieve the goal of less hardware, low cost, and reduced interference between users Effect
Active Publication Date: 2022-08-02
DONGGUAN UNIV OF TECH
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[0005] Aiming at the above-mentioned defects of the prior art, the present invention provides a design method of millimeter-wave beamforming for UAVs based on partially connected antenna arrays, aiming to solve the problem that traditional beamforming design schemes cannot simultaneously satisfy the requirements of maximizing beamforming gain and minimum user interval. Interference design requirements, and the problem of not being able to directly use angle domain information to design beamforming
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[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments o...
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The invention discloses a millimeter wave beamforming design method for an unmanned aerial vehicle based on a partially connected antenna array. According to the UAV combining vector and the estimated value of the channel matrix, the beamforming gain relationship and the UAV user total interference relationship are constructed; according to the beamforming gain relationship and the UAV user total interference relationship The semi-positive definite programming problem is constructed, and the analog beamforming vector is determined based on the semi-positive definite programming problem; the beamforming design result is determined according to the analog beamforming vector. The design method of the present invention reduces the interference between users while maximizing the beamforming gain, realizes a higher user rate, characterizes the beamforming gain and the total interference of the UAV users based on the channel matrix estimation value, and solves the problem that the angle domain information cannot be directly used Design beamforming problems.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a design method for millimeter-wave beamforming of an unmanned aerial vehicle based on a partially connected antenna array. Background technique [0002] The millimeter-wave band is rich in spectrum resources, which can be used to support ultra-high-speed UAV communication. In order to utilize millimeter-wave multi-antenna transmission diversity, beamforming design can be used in millimeter-wave base stations. Due to the limitation of the front-end hardware of the radio-frequency chain (RFchain), the all-digital beamforming cannot be integrated on the small antenna array of the millimeter wave of the UAV. The hybrid beamforming based on the partially connected antenna array structure is a feasible alternative. In addition to achieving transmission diversity, the partially connected antenna structure has lower cost and higher energy efficiency and spectral efficiency than t...
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IPC IPC(8): H04B7/0426H04B7/0456H04B7/185H04B17/00
CPCH04B7/043H04B7/18502H04B7/0456H04B17/0087
Inventor 张伟铮
Owner DONGGUAN UNIV OF TECH