Swin Transformer-Based CSI Feedback for Massive MIMO
Fuente:
arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914639405645824 |
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| author | Cheng, Jiaming Chen, Wei Xu, Jialong Guo, Yiran Li, Lun Ai, Bo |
| author_facet | Cheng, Jiaming Chen, Wei Xu, Jialong Guo, Yiran Li, Lun Ai, Bo |
| contents | For massive multiple-input multiple-output systems in the frequency division duplex (FDD) mode, accurate downlink channel state information (CSI) is required at the base station (BS). However, the increasing number of transmit antennas aggravates the feedback overhead of CSI. Recently, deep learning (DL) has shown considerable potential to reduce CSI feedback overhead. In this paper, we propose a Swin Transformer-based autoencoder network called SwinCFNet for the CSI feedback task. In particular, the proposed method can effectively capture the long-range dependence information of CSI. Moreover, we explore the impact of the number of Swin Transformer blocks and the dimension of feature channels on the performance of SwinCFNet. Experimental results show that SwinCFNet significantly outperforms other DL-based methods with comparable model sizes, especially for the outdoor scenario. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_06435 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Swin Transformer-Based CSI Feedback for Massive MIMO Cheng, Jiaming Chen, Wei Xu, Jialong Guo, Yiran Li, Lun Ai, Bo Information Theory Signal Processing For massive multiple-input multiple-output systems in the frequency division duplex (FDD) mode, accurate downlink channel state information (CSI) is required at the base station (BS). However, the increasing number of transmit antennas aggravates the feedback overhead of CSI. Recently, deep learning (DL) has shown considerable potential to reduce CSI feedback overhead. In this paper, we propose a Swin Transformer-based autoencoder network called SwinCFNet for the CSI feedback task. In particular, the proposed method can effectively capture the long-range dependence information of CSI. Moreover, we explore the impact of the number of Swin Transformer blocks and the dimension of feature channels on the performance of SwinCFNet. Experimental results show that SwinCFNet significantly outperforms other DL-based methods with comparable model sizes, especially for the outdoor scenario. |
| title | Swin Transformer-Based CSI Feedback for Massive MIMO |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2401.06435 |