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
- 有機金属化学(71)有機合成における第9族遷移金属化合物を用いた特徴的反応(2)
- 有機金属化学(70)有機合成における第9族遷移金属化合物を用いた特徴的反応(1)
- 有機金属化学(69)有機合成における遷移金属化合物触媒を用いたアルキンの三つの特徴的反応(3)
- 有機金属化学(68)有機合成における遷移金属化合物触媒を用いたアルキンの三つの特徴的反応(2)
- 有機金属化学(67)有機合成における遷移金属化合物触媒を用いたアルキンの三つの特徴的反応(1)