@article {RF_MIMO_radios_IEEEVTMagazine_2009, title = {Developing Energy-Efficient MIMO Radios}, journal = {IEEE Vehicular Technology Magazine}, year = {2009}, month = {March}, pages = {34{\textendash}41}, author = {Eickhoff, R. and Kraemer, R. and Santamar{\'\i}a, Ignacio and Gonz{\'a}lez, L.} }