@article{TUW-230884, author = {Schwarz, Stefan and Rupp, Markus}, title = {Predictive Quantization on the Stiefel Manifold}, journal = {IEEE Signal Processing Letters}, year = {2015}, volume = {22}, number = {2}, pages = {234--238}, doi = {10.1109/LSP.2014.2354258}, keywords = {Adaptive quantization, Grassmann manifold, limited feedback, multi-user MIMO, Stiefel manifold} }