Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866909337415319552 |
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| author | Qin, Ziao Yin, Haifan |
| author_facet | Qin, Ziao Yin, Haifan |
| contents | The timely precoding of frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) systems is a substantial challenge in practice, especially in mobile environments. In order to improve the precoding performance and reduce the precoding complexity, we propose a partial reciprocity-based precoding matrix prediction scheme and further reduce its complexity by exploiting the channel gram matrix. We prove that the precoders can be predicted through a closed-form eigenvector interpolation which was based on the periodic eigenvector samples. Numerical results validate the performance improvements of our schemes over the conventional schemes from 30 km/h to 500 km/h of moving speed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_04475 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility Qin, Ziao Yin, Haifan Information Theory Signal Processing The timely precoding of frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) systems is a substantial challenge in practice, especially in mobile environments. In order to improve the precoding performance and reduce the precoding complexity, we propose a partial reciprocity-based precoding matrix prediction scheme and further reduce its complexity by exploiting the channel gram matrix. We prove that the precoders can be predicted through a closed-form eigenvector interpolation which was based on the periodic eigenvector samples. Numerical results validate the performance improvements of our schemes over the conventional schemes from 30 km/h to 500 km/h of moving speed. |
| title | Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2410.04475 |