Junghyun Kim Youn-Ok Park Seungjae Bahng Efficient Soft-Output Generation Method for Spatially Multiplexed MIMO Systems. 3512-3515 2009 92-B IEICE Trans. Commun. 11 https://doi.org/10.1587/transcom.E92.B.3512 http://search.ieice.org/bin/summary.php?id=e92-b_11_3512 db/journals/ieicet/ieicet92b.html#KimPB09