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The orthogonal random beamforming is a practical scheme to increase the throughput of the MIMO system significantly. But the fairness allover the subscribers is the weak point. In this paper, the proportional fair scheduling scheme is introduced to the ORBF scheme for the multi-user MIMO systems and two adaptive proportional fair scheduling schemes are proposed to increase the throughput of the subscribers...
In MIMO systems, the multi-user diversity is exploited by always scheduling the subscribers whose channel conditions are almost in their peaks. The throughput of system is increased but the fairness is ignored, even some subscribers will be "starvation". In this paper, the fairness of the MIMO systems is concerned and two adaptive proportional fair scheduling schemes based on opportunistic...
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