@article{TUW-220376, author = {Schwarz, Stefan and Colom Ikuno, Josep and Simko, Michal and Taranetz, Martin and Wang, Qi and Rupp, Markus}, title = {Pushing the Limits of LTE: A Survey on Research Enhancing the Standard}, journal = {IEEE Access}, year = {2013}, volume = {1}, pages = {51--62}, doi = {10.1109/ACCESS.2013.2260371}, keywords = {Heterogeneous networks, distributed antenna systems, frequency synchronization, pilot power allocation, multiuser gains, LTE, MIMO, reproducible research} }