Monte Carlo simulations show that subgroup multicasting with normalized conjugate beamforming offers a robust performance-complexity trade-off in clustered and heterogeneous user scenarios for cell-free massive MIMO, while unicast is better in uniform deployments.
User Subgrouping and Power Control for Multicast Massive MIMO Over Spatially Correlated Channels
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Conjugate Beamforming Variants for Multicasting in Cell-Free Massive MIMO Systems
Monte Carlo simulations show that subgroup multicasting with normalized conjugate beamforming offers a robust performance-complexity trade-off in clustered and heterogeneous user scenarios for cell-free massive MIMO, while unicast is better in uniform deployments.