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Table 2 The Complexity of the Proposed Method at Users

From: Orthogonal beamforming using Gram-Schmidt orthogonalization for multi-user MIMO downlink system

   The number of operators
Generation of the vectors Multiplications (N t - 1)!8N t + (N t + 1) 197
  Square roots 1 1
Selection of the BF vector Multiplications (N t - 1)(4N t + 2) 54
  Square roots (N t - 1) 3
Total Multiplications   251
  Square roots   4