Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast

In this paper, we use satellite-assisted and multi-group multicast mechanisms to relieve ground traffic pressure and improve data transmission efficiency of cell-free massive MIMO systems. We propose to estimate channel state information (CSI) by common pilot scheme. Given the estimated CSI, we deri...

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Detalles Bibliográficos
Autores principales: Li, Jiamin, Chen, Lingling, Zhu, Pengcheng, Wang, Dongming, You, Xiaohu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472470/
https://www.ncbi.nlm.nih.gov/pubmed/34577428
http://dx.doi.org/10.3390/s21186222
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author Li, Jiamin
Chen, Lingling
Zhu, Pengcheng
Wang, Dongming
You, Xiaohu
author_facet Li, Jiamin
Chen, Lingling
Zhu, Pengcheng
Wang, Dongming
You, Xiaohu
author_sort Li, Jiamin
collection PubMed
description In this paper, we use satellite-assisted and multi-group multicast mechanisms to relieve ground traffic pressure and improve data transmission efficiency of cell-free massive MIMO systems. We propose to estimate channel state information (CSI) by common pilot scheme. Given the estimated CSI, we derive the closed-form expressions of achievable rate with maximum ratio transmission (MRT) and zero-forcing (ZF) precoding. The correctness of the closed-form expressions is verified through simulations. The results show that with the help of satellite and multicast, the average system spectrum efficiency (SE) can be significantly improved.
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spelling pubmed-84724702021-09-28 Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast Li, Jiamin Chen, Lingling Zhu, Pengcheng Wang, Dongming You, Xiaohu Sensors (Basel) Article In this paper, we use satellite-assisted and multi-group multicast mechanisms to relieve ground traffic pressure and improve data transmission efficiency of cell-free massive MIMO systems. We propose to estimate channel state information (CSI) by common pilot scheme. Given the estimated CSI, we derive the closed-form expressions of achievable rate with maximum ratio transmission (MRT) and zero-forcing (ZF) precoding. The correctness of the closed-form expressions is verified through simulations. The results show that with the help of satellite and multicast, the average system spectrum efficiency (SE) can be significantly improved. MDPI 2021-09-16 /pmc/articles/PMC8472470/ /pubmed/34577428 http://dx.doi.org/10.3390/s21186222 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Jiamin
Chen, Lingling
Zhu, Pengcheng
Wang, Dongming
You, Xiaohu
Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title_full Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title_fullStr Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title_full_unstemmed Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title_short Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
title_sort satellite-assisted cell-free massive mimo systems with multi-group multicast
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472470/
https://www.ncbi.nlm.nih.gov/pubmed/34577428
http://dx.doi.org/10.3390/s21186222
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AT chenlingling satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast
AT zhupengcheng satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast
AT wangdongming satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast
AT youxiaohu satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast

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