A survey on zero-forcing beamformer design under per-antenna power constraints for multiuser MIMO systems
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Zero-forcing beamforming (ZFBF) under perantenna power constraint (PAPC) is a popular research topic. A survey is carried out in this paper to show the important results in the literature in this area. Particularly, it has been found that there are two research lines for this topic. One research line is to find the optimal solutions based on the interior point method. Another line is focused on the low complexity and parallel implementations. Important results are presented for both lines.
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