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It has been shown in the literature that capacity region of the Gaussian broadcast channels is achieved by dirty paper coding but due to full channel state information requirement and high complexity, its application is limited. Several multiple-input multiple-output (MIMO) techniques have been proposed for the orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we consider a...
In this study, we consider a scheduling algorithm for a limited feedback opportunistic beamforming (OBF). Our proposal is based on making Transmit OBF codebook vectors controlled by a rotation weight (RW)in order to obtain almost a zero correlation between the OBF codebook vectors used for the selected spatial channels. Accordingly, we meet the performance of OBF based on the feedback of the full...
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