Millimeter wave channel estimation method based on adaptive compressed sensing

A channel estimation and compressed sensing technology, applied in channel estimation, baseband system components, radio transmission systems, etc.

Active Publication Date: 2019-10-25
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, in the process of using the BOMP algorithm to estimate millimeter-wave channel information, the system needs to know the number of effective paths in the channel, which makes the algorithm have certain limitations in the application of actual scenarios

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  • Millimeter wave channel estimation method based on adaptive compressed sensing
  • Millimeter wave channel estimation method based on adaptive compressed sensing
  • Millimeter wave channel estimation method based on adaptive compressed sensing

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. The relevant directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawings). Sports conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0031] As described in the background, in the prior art, in the process of using the BOMP algorithm to est...

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Abstract

The invention discloses a millimeter wave channel estimation method based on adaptive compressed sensing. The method comprises the following steps: constructing an optimization problem model of millimeter wave channel estimation; solving an optimal solution of the optimization problem model by adopting an adaptive orthogonal matching pursuit algorithm based on block sparsity; and calculating to obtain a millimeter wave channel estimation result based on the optimal solution of the optimization problem model. According to the scheme, the millimeter wave channel can be estimated under the condition that the number of effective paths in the channel is unknown.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a millimeter wave channel estimation method based on adaptive compressed sensing. Background technique [0002] The millimeter-wave MIMO system is considered to be the most promising communication technology in the next generation of wireless communication technology, for the following two reasons. 1. Due to the short wavelength of the millimeter wave, a large number of antennas can be integrated into an antenna array in the millimeter wave MIMO system, so as to reduce the path loss caused by the millimeter wave and improve the beamforming gain of the system. 2. Since there are abundant spectrum resources in the 30-300GHz frequency band where the millimeter wave is located, it can meet the increasing spectrum demand. [0003] Channel estimation is the basis for effective communication and precoding in the millimeter-wave MIMO system. Due to the large number of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04B7/0413
CPCH04L25/024H04B7/0413
Inventor 刘旭谢洋孟萍赵学健杨龙祥朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM
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