Construction method of distributed robust multi-cell cooperative beam forming ADMM network

A multi-cell cooperation and beamforming technology, applied in diversity/multi-antenna systems, space transmit diversity, radio transmission systems, etc., can solve problems such as reducing the universality of algorithms, and achieve the effect of increasing adaptability and improving accuracy

Active Publication Date: 2021-09-17
XI AN JIAOTONG UNIV
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Problems solved by technology

Moreover, when facing different problems, different hyperparameters need to be selected, which greatly reduces the universality of the algorithm.

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  • Construction method of distributed robust multi-cell cooperative beam forming ADMM network
  • Construction method of distributed robust multi-cell cooperative beam forming ADMM network
  • Construction method of distributed robust multi-cell cooperative beam forming ADMM network

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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a construction method of a distributed robust multi-cell cooperative beam forming ADMM network, and aims to solve the problem of multi-cell cooperative beam forming (MCBF) design of worst case signal to interference and noise ratio (SINR) constraint. The method comprises the steps of: starting from a multi-cell robust beam forming ADMM algorithm, converting a local beam forming vector solving sub-problem into a standard form through a Schur complementary theorem and a diagonal matrix; solving a local beam forming vector solving sub-problem through adoption of an HKM direction primal dual interior point method, and converting implicit iteration into explicit iteration. mapping an ADMM algorithm to a data flow diagram through an expansion idea, converting each calculation link of the original ADMM algorithm into neurons with learnable parameters, and constructing an MCBF-ADMM network; and through end-to-end learning, achieving data-driven optimal parameter design. The beam forming precision is effectively improved, and the adaptability of beam forming to different channel environments is improved.

Description

technical field [0001] The invention belongs to the communication field, relates to the field of multi-cell beamforming in wireless communication, and in particular relates to a construction method of a distributed robust multi-cell cooperative beamforming ADMM network. Background technique [0002] Compared with the traditional single-cell beamforming design, multi-cell cooperative beamforming can significantly improve the throughput of the system, and has received extensive attention in recent years. Coordinated beamforming in multiple cells can effectively reduce inter-cell interference (ICI). [0003] The above methods are based on complete channel state information (CSI) and the control of the control center. However, in the actual multi-cell system, the following problems will be encountered: [0004] First, in practical scenarios, the BS cannot obtain perfect channel state information (CSI) due to imperfect channel estimation and limited feedback. [0005] Second, t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617Y02D30/70
Inventor 徐静王樵之许崇斌王磊
Owner XI AN JIAOTONG UNIV
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