Reduced feedback and random beamforming for OFDM MIMO broadcast channels

  title={Reduced feedback and random beamforming for OFDM MIMO broadcast channels},
  author={Maralle J. Fakhereddin and Masoud Sharif and Babak Hassibi},
  journal={IEEE Transactions on Communications},
It has been shown that random beamforming using partial channel state information (CSI) achieves the same throughput scaling as obtained from dirty paper coding for a broadcast (downlink) channel with M transmit antennas and K users where K is large. In this paper, we apply this scheme to wideband MIMO broadcast channels. By using OFDM, an L-tap wideband channel can be decomposed to N parallel narrowband channels (subcarriers), where N > L . Neighboring subcarriers are highly correlated… CONTINUE READING


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  • S. Sanayei, A. Nosratinia
  • in Proc. IEEE Inform. Theory Workshop,
  • 2004
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