Il-Min Kim 0001 Youn-Ok Park Young-Jo Bang Fast ML Detection for Quasi-Orthogonal STBCs of Rate 2 in Under-Determined Systems [Transactions Papers]. 1249-1257 2008 56 IEEE Trans. Commun. 8 https://doi.org/10.1109/TCOMM.2008.070019 db/journals/tcom/tcom56.html#KimPB08