Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility
<|reference_start|>Partial reciprocity-based precoding matrix prediction in FDD massive MIMO with mobility: 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.<|reference_end|>
@article{qin2024partial,
    title={Partial reciprocity-based precoding matrix prediction in FDD massive
  MIMO with mobility},
    author={Ziao Qin, Haifan Yin},
    journal={arXiv preprint arXiv:2410.04475},
    year={2024},
    archivePrefix={arXiv},
    eprint={2410.04475},
    primaryClass={cs.IT eess.SP math.IT}
}