Limited Feedback Precoding Based on Hierarchical Codebook and Linear Receiver

@article{Huang2008LimitedFP,
  title={Limited Feedback Precoding Based on Hierarchical Codebook and Linear Receiver},
  author={Yongming Huang and Daofeng Xu and Luxi Yang and Yinggang Du and Bin Li},
  journal={2008 IEEE International Conference on Communications},
  year={2008},
  pages={4749-4753}
}
The analysis shows that the conventional codebook construction of Grassmannian subspace packing can not control the performance loss caused by a linear receiver, while a proper unitary perturbation to the codebook is capable of compensating for this performance loss. This paper therefore proposes a novel hierarchical codebook to exploit the gain of unitary perturbation. The hierarchical codebook consists of a Grassmannian subcodebook and a proposed perturbation subcodebook. To implement… CONTINUE READING

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