Joint Spatial Division and Coaxial Multiplexing for Downlink Multi-User OAM Wireless Backhaul

@article{Long2021JointSD,
  title={Joint Spatial Division and Coaxial Multiplexing for Downlink Multi-User OAM Wireless Backhaul},
  author={Wen-Xuan Long and R. Chen and Marco Moretti and Jian Xiong and Jiandong Li},
  journal={IEEE Transactions on Broadcasting},
  year={2021},
  volume={67},
  pages={879-893}
}
Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectral efficiencies (SEs). However, the existing research on OAM wireless communications is mainly focused on point-to-point transmission in the line-of-sight (LoS) scenario. In this paper, we propose an overall scheme of the downlink multi-user OAM (MU-OAM) wireless backhaul based on uniform circular arrays (UCAs) for… 

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