@article{cellfreemassivemimowithnonorthogonal,
  title = {Cell-Free Massive MIMO with Nonorthogonal Pilots for Internet of Things},
  author = {Shilpa Rao and Alexei Ashikhmin and Hong Yang},
  year = {2020},
  eprint = {2006.10363},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.10363v1},
}