Beam Domain Channel Estimation for Spatial Non-Stationary Massive MIMO Systems
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909451122900992 |
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| author | Hou, Lin Chang, Hengtai Wang, Cheng-Xiang Huang, Jie Yang, Songjiang |
| author_facet | Hou, Lin Chang, Hengtai Wang, Cheng-Xiang Huang, Jie Yang, Songjiang |
| contents | In massive multiple-input multiple-output (MIMO) systems, the channel estimation scheme is subject to the spatial non-stationarity and inevitably power leakage in the beam domain. In this paper, a beam domain channel estimation scheme is investigated for spatial non-stationary (SNS) massive MIMO systems considering power leakage. %a novel beam domain channel estimation scheme is proposed for spatial non-stationary (SNS) massive MIMO systems. Specifically, a realistic massive MIMO beam domain channel model (BDCM) is introduced to capture the spatial non-stationarity considering power leakage by introducing the illustration of visibility region (VR). Then, a beam domain structure-based sparsity adaptive matching pursuit (BDS-SAMP) scheme is proposed based on the cross-block sparse structure and power ratio threshold of beam domain channel. Finally, the simulation results validate the accuracy of proposed BDS-SAMP scheme with low pilot overhead and reasonable complexity by comparing with conventional schemes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_04242 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Beam Domain Channel Estimation for Spatial Non-Stationary Massive MIMO Systems Hou, Lin Chang, Hengtai Wang, Cheng-Xiang Huang, Jie Yang, Songjiang Systems and Control Information Theory In massive multiple-input multiple-output (MIMO) systems, the channel estimation scheme is subject to the spatial non-stationarity and inevitably power leakage in the beam domain. In this paper, a beam domain channel estimation scheme is investigated for spatial non-stationary (SNS) massive MIMO systems considering power leakage. %a novel beam domain channel estimation scheme is proposed for spatial non-stationary (SNS) massive MIMO systems. Specifically, a realistic massive MIMO beam domain channel model (BDCM) is introduced to capture the spatial non-stationarity considering power leakage by introducing the illustration of visibility region (VR). Then, a beam domain structure-based sparsity adaptive matching pursuit (BDS-SAMP) scheme is proposed based on the cross-block sparse structure and power ratio threshold of beam domain channel. Finally, the simulation results validate the accuracy of proposed BDS-SAMP scheme with low pilot overhead and reasonable complexity by comparing with conventional schemes. |
| title | Beam Domain Channel Estimation for Spatial Non-Stationary Massive MIMO Systems |
| topic | Systems and Control Information Theory |
| url | https://arxiv.org/abs/2501.04242 |