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Design method and device for mimo transmitter hybrid precoder based on Hungarian algorithm

A Hungarian algorithm and precoder technology, which is applied in the field of hybrid precoder design for MIMO transmitters based on the Hungarian algorithm, can solve the problems of obvious gap between all-digital precoders and insufficient energy efficiency improvement of design schemes, etc.

Active Publication Date: 2022-05-24
TSINGHUA UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Existing research on dynamic sub-connection is less, and the energy efficiency of the given design scheme is not enough, the gap with the full digital precoder is obvious, and further optimization is needed

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  • Design method and device for mimo transmitter hybrid precoder based on Hungarian algorithm
  • Design method and device for mimo transmitter hybrid precoder based on Hungarian algorithm
  • Design method and device for mimo transmitter hybrid precoder based on Hungarian algorithm

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Embodiment Construction

[0048] Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application.

[0049] The following describes the method and device for designing a hybrid precoder for a MIMO transmitter based on the Hungarian algorithm according to the embodiments of the present application with reference to the accompanying drawings.

[0050] First, a method for designing a hybrid precoder for a MIMO transmitter based on the Hungarian algorithm proposed according to an embodiment of the present application will be described with reference to the accompanying drawi...

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Abstract

This application discloses a method and device for designing a hybrid precoder for a MIMO transmitter based on the Hungarian algorithm, including: realizing spectrum by minimizing the distance between the hybrid precoder and the all-digital precoder according to the known channel matrix information Efficiency optimization, using alternate optimization strategy to realize the design of hybrid precoder. Specifically: first use the water-filling algorithm to calculate the all-digital precoder with the highest spectral efficiency, then initialize the analog precoder and digital precoder, and then start iterative update: first update the design of the analog precoder based on the Hungarian algorithm; Then update the design of the digital precoder according to the least squares method; then, we check whether the condition for terminating the update is met. If the condition is met, use the limited power constraint to normalize and complete the design, otherwise, proceed to the next round of update. This method can realize the hybrid precoder design of the dynamic sub-connection structure, and can achieve higher spectral efficiency and energy efficiency.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a method and device for designing a hybrid precoder for a MIMO transmitter based on the Hungarian algorithm. Background technique [0002] Hybrid precoding (hybrid precoding) divides the precoding of massive MIMO system into two parts: analog precoding and digital precoding. A compromise between low energy consumption is one of the key technologies in the field of 5G wireless communication, especially millimeter wave communication. Typical hybrid precoding structures are mostly fixed structures, such as figure 1 The fully connected and fixed sub-connected structures shown in (a) and (b) have been fully developed and basically reached the upper limit of theoretical performance. [0003] The dynamic sub-connection is a new hybrid precoding structure, which can improve the flexibility of the precoding structure by switching the connection relationship betwe...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0456H04B7/0413H04B7/06G06F30/27
CPCH04B7/0456H04B7/0413H04B7/06G06F30/27Y02D30/70
Inventor 王劲涛王薛涵潘长勇王军薛永林阳辉
Owner TSINGHUA UNIV