@article{FreudenbergerShavgulidze2016, author = {J{\"u}rgen Freudenberger and Sergo Shavgulidze}, title = {Signal constellations based on Eisenstein integers for generalized spatial modulation}, journal = {IEEE communications letters}, volume = {21}, number = {3}, pages = {556 -- 559}, doi = {10.1109/LCOMM.2016.2630701}, year = {2016}, }