Title :
Semi-Blind Layered Space-Frequency Equalization for Single-Carrier MIMO Systems with Block Transmission
Author :
Sarperi, Luciano ; Zhu, Xu ; Nandi, Asoke K.
Author_Institution :
Univ. of Liverpool, Liverpool
fDate :
4/1/2008 12:00:00 AM
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).
Keywords :
MIMO communication; blind equalisers; independent component analysis; radio receivers; Doppler shifts; block transmission; independent component analysis; semi-blind layered space-frequency equalization receiver; signal to noise ratios; single- carrier cyclic-prefix MIMO systems; Blind equalizers; Channel estimation; Dispersion; Doppler shift; Frequency domain analysis; Higher order statistics; Independent component analysis; MIMO; OFDM; Time domain analysis;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2008.061028
