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Limited Feedback Precoding for Correlated Massive MIMO Systems
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 Title & Authors
Limited Feedback Precoding for Correlated Massive MIMO Systems
Lim, Yeon-Geun; Chae, Chan-Byoung;
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In this paper, we propose a compressive sensing-based channel quantization feedback mechanism that is appropriate for practical massvie multiple-input multiple-output (MIMO) systems. We assume that the base station (BS) has a compact uniform square array that has a highly correlated channel. To serve multiple users, the BS uses a zero-forcing precoder. Our proposed channel feedback algorithm can reduce the feedback overhead as well as a codebook search complexity. Numerical simulations confirm our analytical results.
Massive MIMO;ergodic achievable rate;limited feedback;codebook;compressive sensing;
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