Semi-Blind Layered Space-Frequency Equalization for Single-Carrier MIMO Systems with Block Transmission

  • Authors:
  • L. Sarperi;Xu Zhu;A. K. Nandi

  • Affiliations:
  • Univ. of Liverpool, Liverpool;-;-

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2008

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Abstract

This letter proposes a novel semi-blind layered space-frequency equalization (LSFE) receiver for single- carrier cyclic-prefix (SC-CP) multiple-input multiple-output (MIMO) systems with block transmission, based on independent component analysis (ICA). Simulation results show that semi- blind LSFE with various Doppler shifts can provide performance close to the case with perfect channel state information (CSI), using a training overhead of only 0.05%. It also significantly outperforms its orthogonal frequency division multiplexing (OFDM) counterpart with perfect CSI and semi-blind linear SC frequency domain equalization (SC-FDE) over a wide range of signal to noise ratios (SNRs).