@conference {ValcarceVazquezAlvarez2009, title = {Multiantenna detection of multicarrier primary signals exploiting spectral a priori information}, booktitle = {International Conference on Cognitive Radio Oriented Wireless Networks and Communications (Crowncom)}, year = {2009}, month = {June 22-24}, address = {Hannover, Germany}, author = {R. L{\'o}pez-Valcarce and Gonzalo V{\'a}zquez-Vilar and Marcos {\'A}lvarez-D{\'\i}az} }