Hybrid Precoding for Multi-Group Multicasting in mmWave Systems

  title={Hybrid Precoding for Multi-Group Multicasting in mmWave Systems},
  author={Luis F. Abanto-Leon and Matthias Hollick and Gek Hong Sim},
  journal={2019 IEEE Global Communications Conference (GLOBECOM)},
Multicast beamforming is known to improve spectral efficiency. However, its benefits and challenges for hybrid precoders design in millimeter-wave (mmWave) systems remain understudied. To this end, this paper investigates the first joint design of hybrid transmit precoders (with an arbitrary number of finite-resolution phase shifts) and receive combiners for mmWave multi-group multicasting. Our proposed design leverages semidefinite relaxation (SDR), alternating optimization and Cholesky matrix… 
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