Efficient User Scheduling Algorithm for Enhancing Zero-Forcing Beamforming in MIMO Broadcast Channels
スポンサーリンク
概要
- 論文の詳細を見る
This letter presents a novel user scheduling algorithm that provides a maximum sum-rate based on zero-forcing beamforming (ZFBF) in multiple-input multiple-output (MIMO) systems. The proposed technique determines primary user pairs in which the sum-rate exceeds a predetermined threshold. To determine the threshold, we define the maximum-sum-rate criterion (MSRC) derived from the extreme value theory (EVT). Applying the MSRC in ZFBF-based user scheduling, we find that the performance of the proposed method is comparable to that of the exhaustive searching scheme which has a greater computational load. Through computer simulations, we show that the proposed method outperforms the very well-known correlation-based method, semi-orthogonal user selection (SUS), yielding a sum rate that is about 0.57bps/Hz higher when the transmit SNR is 10dB with perfect CSI at BS and the numbers of users and transmit antennas in a cell are 100 and 4, respectively.
論文 | ランダム
- 府中学園 府中市立府中小学校・府中中学校--日本設計 (特集 変わる教育のスペース)
- 川崎市立御幸小学校--湯澤建築設計研究所 (特集 変わる教育のスペース)
- 横浜国立大学キャンパス再編 Y-GSA Power Plant Studio--横浜国立大学施設部 Y-GSAスタジオコミッティ 末光弘和+仲俊治/Y-GSA設計助手 (特集 変わる教育のスペース)
- 似島学園 高等養護部・学習館--宮森洋一郎建築設計室 (特集 変わる教育のスペース)
- 特集 変わる教育のスペース