Lifang Li Dariush Divsalar Samuel Dolinar Iterative demodulation, demapping, and decoding of coded non-square QAM. 16-19 2005 53 IEEE Transactions on Communications 1 http://doi.ieeecomputersociety.org/10.1109/TCOMM.2004.840633 db/journals/tcom/tcom53.html#LiDD05