@ARTICLE {4725, author={N.S. Souto and R. Dinis and J. C. Silva}, doi={10.1109/TCOMM.2010.03.080480}, journal={IEEE Transactions on Communications}, title={Analytical Matched Filter Bound for M-QAM Hierarchical Constellations with Diversity Reception in Multipath Rayleigh Fading Channels}, year={2010}, month={March}, volume={58}, number={3}, pages={737-741}, ISSN={0090-6778} }