Unitary space-time constellations based on quasi-orthogonal sequences. - Jeongchang Kim; Kyungwhoon Cheun; Soongyoon Choi (IEEE Trans. Commun., 2010)

Noncoherent unitary space-time modulated DSSS systems in multipath channels. - Kyungwhoon Cheun; Jeongchang Kim; Youhan Kim; Soongyoon Choi (J. Commun. Networks, 2012)