Seung-Hoon Hwang 0001 Cha-Eul Jeon Byoungjo Choi A Novel Channel Sharing Scheme for Optimizing ODFC in IEEE 802.22 Systems. 1-4 2011 VTC Spring https://doi.org/10.1109/VETECS.2011.5956761 conf/vtc/2011s db/conf/vtc/vtc2011s.html#HwangJC11