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中文摘要：
提出了一种多用户多数据流情况下基于接收机输出端信漏噪比准则的有限反馈预编码方法,很好地解决了实际通信系统中由于反馈信道的带宽限制,发射端往往仅已知部分信道信息的问题.该编码方法不仅有效避免了迫零有限反馈预编码方法发送端和接收端的天线数限制,且在接收端成功避免了噪声被放大.仿真比较了该方法在不同反馈比特数下的系统容量,结果证实,相较于迫零有限反馈预编码方法,本文方法可获得更高的系统容量.
英文摘要：
A multi-user limited feedback precoding scheme for multiple streams based maximizing signal-to-leakage-and-noise ratios at the receiver output is proposed. In practical multi-user multiple-in- put multiple-output（MIMO）system, only the partial channel state information is known to the transmitter. The proposed method does not impose a condition of the relation between the number of trans- mitted and receive antennas, and also avoids enhancing noise. Simulation compares the system capacity under different number of feedback bits, and verifies the proposed scheme results in larger system sum capacity gains than zero-forcing limited feedback precoding scheme.
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