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Opportunistic spectrum sharing in cognitive MIMO wireless networks
IEEE Transactions on Wireless Communications
Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization. In this paper, we consider the spectrum sharing between a large number of cognitive radio users and a licensed user in order to enhance the spectrum efficiency. With the deployment of M antennas at the cognitive base station, an opportunistic spectrum sharing approach is proposed to maximize the downlink throughput of the cognitive radio system and limit the interference to the primarydoi:10.1109/twc.2009.080528 fatcat:bwp22onptbehpoew6hp3mffxni