An Efficient Algorithm for Zero-Forcing Coordinated Beamforming

@article{Kim2012AnEA,
  title={An Efficient Algorithm for Zero-Forcing Coordinated Beamforming},
  author={Haksoo Kim and Heejung Yu and Youngchul Sung and Yong Hoon Lee},
  journal={IEEE Communications Letters},
  year={2012},
  volume={16},
  pages={994-997}
}
The problem of beam tracking for zero-forcing coordinated beamforming in multiple-cell time-varying multiple-input multiple-output channels is considered. Based on null-space perturbation theory, an efficient update algorithm for block-diagonalization-based zero-forcing coordinated beam design is proposed and its performance is analyzed. In slowly-varying channels, the proposed algorithm well tracks the zero-forcing beam solution and significantly reduces computational complexity by simply… CONTINUE READING

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