A Block-Ordered Joint Beamforming Linear Dispersion Code and Its Decoding
Jin Liang Jiang · Dianzi xuebao · 2007
A spectrum-efficient block-ordered joint beamfoming linear dispersion code (BO-JBLDC) is presented for MI- MO(Multi-Input Multi-Output) wireless communication systems with correlated channels.The proposed BO-JBLDC method parti- tions the available transmit antennas into several blocks and applies linear dispersion code(LDC) on each block,which can decrease decoding complexity and increase code gain.Transmit and receive eigen-beamforming was employed in the presence of deteriorative fading correlation.A novel post-ordered interference suppression and canceling decoder and its iterative scheme are presented to re- move inter-substream interference and enhance the order of spatial diversity gain.The results show that BO-JBLDC can lower de- coding complexity and improve spectral efficiency and reliability significantly.