User pilot scheduling in massive MIMO systems

@article{Yue2015UserPS,
  title={User pilot scheduling in massive MIMO systems},
  author={Sisi Yue and Ju Liu and Chao Zhai and Qing Wang},
  journal={2015 International Conference on Wireless Communications & Signal Processing (WCSP)},
  year={2015},
  pages={1-5}
}
One bottleneck of the massive multi-input multi-output (MIMO) systems is the pilot contamination caused by users sharing the non-orthogonal pilots. The pilot contamination contributes significantly to the channel estimation error at the base station (BS) and finally results in the saturation of user rates. This paper firstly analyzes the mean square error… CONTINUE READING