MIMO Transmit Beamforming Under Uniform Elemental Power Constraint

  title={MIMO Transmit Beamforming Under Uniform Elemental Power Constraint},
  author={Xiayu Zheng and Yao Xie and Jian Li and Petre Stoica},
  journal={2007 IEEE 8th Workshop on Signal Processing Advances in Wireless Communications},
We consider multi-input multi-output (MIMO) transmit beamforming under the uniform elemental power constraint. This is a nonconvex optimization problem, and it is usually difficult to find the optimal transmit beamformer. First, we show that for the multi-input single-output (MISO) case, the optimal solution has a closed-form expression. Then we propose a cyclic algorithm for the MIMO case which uses the closed-form MISO optimal solution iteratively. The cyclic algorithm has a low computational… CONTINUE READING
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