Channel state information acquisition algorithm based on deep learning for IoT

Yong LIAO; Haimei YAO; Yuanxiao HUA

doi:10.11959/j.issn.2096-3750.2019.00085

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Channel state information acquisition algorithm based on deep learning for IoT

Theory and Technology | 更新时间：2024-06-05

- Channel state information acquisition algorithm based on deep learning for IoT
- Chinese Journal on Internet of Things Vol. 3, Issue 1, Pages: 8-13(2019)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-3750.2019.00085
  CLC： TN929.5
- Published：30 March 2019，
  
  Published Online：2019-03，
- 稿件说明：
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YONG LIAO, HAIMEI YAO, YUANXIAO HUA. Channel state information acquisition algorithm based on deep learning for IoT. [J]. Chinese journal on internet of things, 2019, 3(1): 8-13.
DOI：

YONG LIAO, HAIMEI YAO, YUANXIAO HUA. Channel state information acquisition algorithm based on deep learning for IoT. [J]. Chinese journal on internet of things, 2019, 3(1): 8-13. DOI： 10.11959/j.issn.2096-3750.2019.00085.

摘要

针对基于大规模多输入多输出（MIMO）的物联网系统中用户侧将信道状态信息（CSI）发送到基站时反馈开销大的问题，提出一种基于深度学习的CSI反馈网络用来反馈CSI。该网络首先使用卷积神经网络（CNN）提取信道特征矢量和最大池化层通过降维来达到压缩CSI的目的，然后使用全连接和CNN将压缩的CSI解压，恢复原始信道。仿真结果表明，与现有的CSI反馈方法相比，所提出的CSI反馈网络恢复的CSI更接近原始信道，重构质量明显提高。

Abstract

To solve the problem of high feedback overhead when the user sends channel state information (CSI) to the base station in massive multiple input multiple output (MIMO) based on Internet of things system

a CSI feedback network based on deep learning was proposed to feedback CSI.Firstly

the proposed network used convolutional neural network (CNN) to extract channel feature vectors and maxpooling to compress the data.Then the compressed CSI was decompressed by using full connection and CNN to restore the original channel.The simulation results show that compared with the existing CSI feedback methods

the CSI recovered by the proposed CSI feedback network is closer to the original channel

and the reconstruction quality is improved significantly.

关键词

大规模MIMO物联网CSI反馈深度学习

Keywords

massive MIMOInternet of thingsCSI feedbackdeep learning

references

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