@inproceedings{ScSc15b, author = {Christoph Schmitz and Anke Schmeink}, title = "Construction of Efficient Amplitude Phase Shift Keying Constellations", pages = "1-6", booktitle = " International ITG Conference on Systems, Communications and Coding 2015", address = {Hamburg}, month = Feb, year = 2015, hsb = {RWTH-2015-00859}, }