TY - JOUR T1 - Choose Your Subcarriers Wisely: Active Interference Cancellation for Cognitive OFDM JF - IEEE Journal on Emerging and Selected Topics in Circuits and Systems Y1 - 2013 A1 - Schmidt, J.F. A1 - Costas-Sanz, S. A1 - R. López-Valcarce KW - cognitive radio KW - dynacs KW - spectrum shaping VL - 3 IS - 4 ER -