@article{TUW-219715, author = {Simko, Michal and Diniz, Paulo S. R. and Wang, Qi and Rupp, Markus}, title = {Adaptive Pilot-Symbol Patterns for MIMO OFDM Systems}, journal = {IEEE Transactions on Wireless Communications}, year = {2013}, volume = {PP}, number = {99}, pages = {1--11}, doi = {10.1109/TWC.2013.081413.121998} }