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Maximum minimum energy efficiency multi-cell large-scale MIMO beam domain power distribution method

An allocation method and beam domain technology, applied in the field of communication, can solve the problems of high complexity and difficulty in obtaining instantaneous channel state information, so as to reduce the complexity of implementation, improve energy efficiency and spectral efficiency, and avoid high-complexity requirements. The expected effect of the operation

Active Publication Date: 2020-11-10
SOUTHEAST UNIV
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Problems solved by technology

[0004] Traditional energy efficiency optimization problems are often based on instantaneous channel state information, but in massive MIMO systems, it is difficult to obtain instantaneous channel state information, and when the number of antennas on the base station side is large, the complexity of the expected process in solving the user rate process very high

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  • Maximum minimum energy efficiency multi-cell large-scale MIMO beam domain power distribution method

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Embodiment Construction

[0054] Below in conjunction with accompanying drawing, the technical scheme of the present invention is described in further detail:

[0055] The present invention may be embodied in many different forms and should not be considered limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0056] like figure 1 As shown, the present invention proposes a method for maximizing the minimum energy efficiency of multi-cell massive MIMO beam domain power allocation, and the method includes the following steps:

[0057] 1) Build cell clusters and configure antenna arrays, and generate beam sets through beamforming:

[0058] Several cells are constructed into a cell cluster, and the base station of each cell in the cell cluster is configured with a large-scale antenna array, in which the number of antennas is 10 2 or 10 3 o...

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Abstract

The invention discloses a maximum minimum energy efficiency multi-cell large-scale MIMO beam domain power distribution method, which comprises the following steps: constructing a cell cluster and configuring an antenna array, generating a beam set through beam forming: obtaining statistical channel state information of each user in the cell cluster: sending the statistical channel state information to a central processing center, and carrying out multi-cell large-scale MIMO beam domain power distribution; and dynamically carrying out the multi-cell large-scale MIMO beam domain power distribution according to the change of the statistical channel state information. According to the method, the energy efficiency and the spectral efficiency are effectively improved through the large-scale antenna array, the beam domain statistical channel state information of a plurality of cell users is fully utilized, the design performance is improved, the maximum minimum energy efficiency multi-cell large-scale MIMO beam domain power distribution is carried out, and the complexity of optimization problem solving and physical layer implementation is remarkably reduced.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method for maximizing minimum energy efficiency for multi-cell massive MIMO beam domain power allocation. Background technique [0002] In a massive MIMO system, a massive antenna array is arranged at the base station to serve multiple users simultaneously. The use of massive MIMO technology can effectively reduce the interference between users and greatly improve the energy efficiency and spectral efficiency of wireless communication systems. Beam domain transmission means that the base station side converts the transmitted signal to the beam domain through a unified unitary transformation, making full use of the spatial angular resolution of the large-scale antenna array and the local characteristics of the user channel in the beam domain. [0003] In the multi-cell massive MIMO downlink transmission process, the base station sends signals to the users ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0426H04W52/24H04W52/42
CPCH04B7/0426H04B7/043H04W52/241H04W52/42
Inventor 尤力黄雨菲姜涵予汤金科乔治王闻今
Owner SOUTHEAST UNIV
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