@article{efficientchannelaodaoaestimationusing,
  title = {Efficient Channel AoD/AoA Estimation Using Widebeams for Millimeter Wave MIMO Systems},
  year = {2019},
  eprint = {1905.03930},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1905.03930v1},
}