Terasan Niyomsataya Ali Miri Monica Nevins Unitary Space-Time Group Codes: Diversity Sums From Character Tables. 5203-5210 2008 54 IEEE Transactions on Information Theory 11 http://dx.doi.org/10.1109/TIT.2008.929970 db/journals/tit/tit54.html#NiyomsatayaMN08a