Downlink Beamforming and Admission Control for Spectrum Sharing Cognitive Radio MIMO System

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Provided by: Academy & Industry Research Collaboration Center
Topic: Mobility
Format: PDF
The authors investigate the problem of multiuser downlink beam-forming and admission control considering a scenario where licensed, or primary, users and cognitive radios, or secondary users, are transmitting concurrently over the same band. The primary users share a common receiver and the interference on this receiver from secondary users should be strictly limited to a certain level. Each secondary link is assumed to have a minimum Quality of Service (QoS) requirement that should be satisfied together with the interference limit constraint, otherwise the secondary link is not admitted.
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