Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning

To solve the problem of high feedback overhead in a multi-user massive multiple-input multiple-output (MIMO) system assisted by a reconfigurable intelligent surface (RIS) in frequency-division duplexing (FDD) mode, a channel state information (CSI) feedback framework based on manifold learning was p...

Full description

Saved in:
Bibliographic Details
Main Authors: QIAN Mujun, YU Shunchi, LIU Chen, SONG Yunchao, LU Feng
Format: Article
Language:zho
Published: China InfoCom Media Group 2024-12-01
Series:物联网学报
Subjects:
Online Access:http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2024.00374/
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832586312133115904
author QIAN Mujun
YU Shunchi
LIU Chen
SONG Yunchao
LU Feng
author_facet QIAN Mujun
YU Shunchi
LIU Chen
SONG Yunchao
LU Feng
author_sort QIAN Mujun
collection DOAJ
description To solve the problem of high feedback overhead in a multi-user massive multiple-input multiple-output (MIMO) system assisted by a reconfigurable intelligent surface (RIS) in frequency-division duplexing (FDD) mode, a channel state information (CSI) feedback framework based on manifold learning was proposed. Firstly, the framework achieved initial feedback overhead reduction by simplifying the CSI feedback process. Then, the framework combined the manifold learning to train two set of dictionaries to achieve dimension reduction and reconstruction of incremental CSI. Finally, the original channel was restored at the base station. The simulation results show that the CSI feedback scheme proposed in this paper has lower overhead and complexity than the existing methods in the multi-user and limited scattering environment, and the reconstruction quality is significantly improved.
format Article
id doaj-art-04e50ef9783d4770ab7afc8465e3b43e
institution Kabale University
issn 2096-3750
language zho
publishDate 2024-12-01
publisher China InfoCom Media Group
record_format Article
series 物联网学报
spelling doaj-art-04e50ef9783d4770ab7afc8465e3b43e2025-01-25T19:00:26ZzhoChina InfoCom Media Group物联网学报2096-37502024-12-01816717679606170Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learningQIAN MujunYU ShunchiLIU ChenSONG YunchaoLU FengTo solve the problem of high feedback overhead in a multi-user massive multiple-input multiple-output (MIMO) system assisted by a reconfigurable intelligent surface (RIS) in frequency-division duplexing (FDD) mode, a channel state information (CSI) feedback framework based on manifold learning was proposed. Firstly, the framework achieved initial feedback overhead reduction by simplifying the CSI feedback process. Then, the framework combined the manifold learning to train two set of dictionaries to achieve dimension reduction and reconstruction of incremental CSI. Finally, the original channel was restored at the base station. The simulation results show that the CSI feedback scheme proposed in this paper has lower overhead and complexity than the existing methods in the multi-user and limited scattering environment, and the reconstruction quality is significantly improved.http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2024.00374/massive MIMOFDDRISchannel feedbackmanifold learning
spellingShingle QIAN Mujun
YU Shunchi
LIU Chen
SONG Yunchao
LU Feng
Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
物联网学报
massive MIMO
FDD
RIS
channel feedback
manifold learning
title Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
title_full Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
title_fullStr Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
title_full_unstemmed Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
title_short Research on CSI feedback of RIS-assisted massive MIMO system based on manifold learning
title_sort research on csi feedback of ris assisted massive mimo system based on manifold learning
topic massive MIMO
FDD
RIS
channel feedback
manifold learning
url http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2024.00374/
work_keys_str_mv AT qianmujun researchoncsifeedbackofrisassistedmassivemimosystembasedonmanifoldlearning
AT yushunchi researchoncsifeedbackofrisassistedmassivemimosystembasedonmanifoldlearning
AT liuchen researchoncsifeedbackofrisassistedmassivemimosystembasedonmanifoldlearning
AT songyunchao researchoncsifeedbackofrisassistedmassivemimosystembasedonmanifoldlearning
AT lufeng researchoncsifeedbackofrisassistedmassivemimosystembasedonmanifoldlearning