A multi-stream tensor alternating optimization method for joint beamforming in RIS-aided multiuser MIMO systems that reduces complexity while approaching benchmark performance.
Joint active and passive beamforming design for multi-stream MIMO RIS systems: A tensor- based approach,
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Low-Complexity Tensor Beamforming for RIS-Aided Multiuser Multistream MIMO Systems
A multi-stream tensor alternating optimization method for joint beamforming in RIS-aided multiuser MIMO systems that reduces complexity while approaching benchmark performance.