Queue aware resource allocation for downlink OFDM  cognitive radio networks

FREE-DOWNLOAD P Mitran, LB Le… – … , research Transactions on, 2010
Abstract—In this paper we consider resource allocation for an OFDMA-based cognitive radio
point-to-multipoint network with fixed users. Specifically, we assume that secondary users are
allowed to transmit on any subchannel provided that the interference that is created to