An Energy Efficiency Optimization Method for a Compact Planar Antenna Array Massive MIMO System
A planar antenna and optimization method technology, applied in the field of mobile communication, can solve problems such as system energy consumption and cost increase, and greatly affect system performance, so as to achieve the effect of improving communication energy efficiency and system performance
Active Publication Date: 2022-02-11
广州市埃特斯通讯设备有限公司
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Problems solved by technology
[0003] However, the close arrangement of a large number of antennas will lead to non-negligible electromagnetic mutual coupling effects, which have a great impact on system performance
Secondly, although a large number of antennas can be deployed in a limited space by using a compact planar array, a large-scale antenna array corresponds to a large number of radio frequency links, and the energy consumption and cost of the system will rise sharply
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[0069] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0070] When deploying a large number of antennas, antenna selection can be used to obtain an optimized antenna subset with low mutual coupling effects, which can indirectly suppress mutual coupling to improve system performance, and has natural advantages in reducing power consumption of radio frequency links. However, individual antenna selection will lose a certain degree of spatial freedom. If it is jointly optimized with beamforming, the high power gain provided by beamforming can be used to further ensure system performance, thereby obtaining a better balance between system energy consumption and communication quality. Good compromise.
[0071] However, there are some problems in the existing technical solutions. Most studies only optimize energy efficiency from the single dimension of beamforming. Considering the changes in antenna scal...
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The invention discloses an energy efficiency optimization method for a compact planar antenna array Massive MIMO system, and constructs a mutual coupling channel model and a power consumption model under a compact planar antenna array structure; based on the mutual coupling channel model and the power consumption model, to maximize Construct the energy efficiency problem model based on the energy efficiency of the Massive MIMO system; optimize the energy efficiency problem model based on perspective reconstruction and sequential parameter convex approximation theory, and obtain the transmit antenna subset and beamforming parameters; perform beamforming preprocessing based on the beamforming parameters, And use the transmit antenna subset to transmit data to the user; the present invention aims at maximizing the system energy efficiency, introduces the preprocessing architecture based on antenna selection into the compact planar antenna array Massive MIMO system, and suppresses the interaction while reducing the power consumption of the base station. Coupling damage is improved, system performance is improved, and the communication energy efficiency of the compact planar antenna array Massive MIMO system is improved.
Description
technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to an energy efficiency optimization method of a compact planar antenna array Massive MIMO system. Background technique [0002] Massive MIMO technology can deeply tap space resources by increasing the number of antennas, and has great potential in terms of capacity gain. In actual engineering deployment, considering some scenarios with limited physical size (wind-affected surface), power consumption, and cost, Massive MIMO systems need to deploy compact planar antenna arrays. [0003] However, the close arrangement of a large number of antennas will lead to non-negligible electromagnetic mutual coupling effects, which have a great impact on system performance. Secondly, although a large number of antennas can be deployed in a limited space by using a compact planar array, a large-scale antenna array corresponds to a large number of radio frequency links, a...
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IPC IPC(8): H04B7/0413H04B7/06H04B17/391H04W52/02G06F30/20G06F111/10G06F119/06
CPCH04B7/0413H04B7/0617H04B7/0695H04B17/391H04W52/0206G06F30/20G06F2111/10G06F2119/06Y02D30/70
Inventor 张阳唐洁庞立华郑聒天栾英姿
Owner 广州市埃特斯通讯设备有限公司