Research on low-complexity XL-MIMO wireless transmission design
Extra-large scale MIMO (XL-MIMO) can meet the requirement of high spectral efficiency in 6G communication, but also faces the challenge caused by the increase in computational complexity.It is found that the unique spatial non-stationary characteristics of XL-MIMO channel brings new possibilities fo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Beijing Xintong Media Co., Ltd
2023-08-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2023170/ |
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| Summary: | Extra-large scale MIMO (XL-MIMO) can meet the requirement of high spectral efficiency in 6G communication, but also faces the challenge caused by the increase in computational complexity.It is found that the unique spatial non-stationary characteristics of XL-MIMO channel brings new possibilities for low-complexity wireless transmission design.Firstly, starting from the near-field propagation effect, the research results of XL-MIMO channel characteristics analysis and channel modeling were combed, and the causes of spatial non-stationarity were deeply discussed.Furthermore, the concept of array visibility region (VR) in XL-MIMO was introduced, and the low-complexity wireless transmission design combined with VR information was discussed.Then, from the perspective of sub-array partition and distributed signal processing, the implementation of XL-MIMO low-complexity system architecture was introduced, and the corresponding design schemes were summarized.Finally, the future research direction was prospected. |
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| ISSN: | 1000-0801 |