Precoder design for MIMO broadcast channels

  title={Precoder design for MIMO broadcast channels},
  author={Xun Shao and Predrag B. Rapajic},
  journal={IEEE International Conference on Communications, 2005. ICC 2005. 2005},
  pages={788-794 Vol. 2}
This paper considers precoder designs in downlink MIMO broadcast channels (BC). A preceding scheme that is analog to the MMSE decision feedback equalizer in the uplink MIMO multiple access channels is first introduced. The proposed scheme can asymptotically achieve the sum-capacity of MIMO-BC at high SNRs. At medium SNRs, its achievable sum capacity is very close to that of MIMO-BC and larger than that of ZF-DR. The new scheme can also offer a significant gain over linear pre-equalization… CONTINUE READING
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