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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/18/6222 |
| _version_ | 1827681232409853952 |
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| author | Jiamin Li Lingling Chen Pengcheng Zhu Dongming Wang Xiaohu You |
| author_facet | Jiamin Li Lingling Chen Pengcheng Zhu Dongming Wang Xiaohu You |
| author_sort | Jiamin Li |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T07:13:18Z |
| format | Article |
| id | doaj.art-34b101a6d3e34d84b880df300f09c046 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T07:13:18Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-34b101a6d3e34d84b880df300f09c0462023-11-22T15:13:33ZengMDPI AGSensors1424-82202021-09-012118622210.3390/s21186222Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group MulticastJiamin Li0Lingling Chen1Pengcheng Zhu2Dongming Wang3Xiaohu You4National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, ChinaSchool of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, ChinaNational Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, ChinaIn 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.https://www.mdpi.com/1424-8220/21/18/6222satellite-assistedcell-free massive MIMOmulti-group multicast |
| spellingShingle | Jiamin Li Lingling Chen Pengcheng Zhu Dongming Wang Xiaohu You Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast Sensors satellite-assisted cell-free massive MIMO 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 | satellite-assisted cell-free massive MIMO multi-group multicast |
| url | https://www.mdpi.com/1424-8220/21/18/6222 |
| work_keys_str_mv | AT jiaminli satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast AT linglingchen satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast AT pengchengzhu satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast AT dongmingwang satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast AT xiaohuyou satelliteassistedcellfreemassivemimosystemswithmultigroupmulticast |