：针对多小区下行链路中的同频干扰问题．提出了一种新的主动式干扰抑制方案。该方案通过在各基站独立 地采用预编码的方式来主动抑制本小区基站对其他相邻小区所产生的干扰。文中提出了两种实现算法：(1)迫零 预编码，它可以获取和无同频干扰系统同样的性能；(2)基于干扰信道最大特征子信道的线性预编码，它能够有 效地实现抑制干扰和提高本小区发送自由度的折衷。仿真结果表明，本文方案提高了系统的性能和频谱效率。 关键词：多输入多输出(MIMO)；多小区；干扰抑制；预编码 中图分类号：TN929．5 文献标识码：A ProactiVe Interference Suppression Scheme

mimozhuganraoyizhi.pdf

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