@article{channelcovarianceestimationinmultiuser,
  title = {Channel covariance estimation in multiuser massive MIMO systems with an approach based on infinite dimensional Hilbert spaces},
  author = {Renato Luis Garrido Cavalcante and Slawomir Stanczak},
  year = {2020},
  eprint = {2006.07007},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.07007v1},
}