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MIMO广播系统中的用户丢弃准则

DOI: 10.13190/jbupt.200903.27.chengtzh, PP. 27-31

Keywords: 多输入多输出,迫零波束赋型,用户丢弃准则,多用户选择

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Abstract:

针对MIMO下行系统中基于ZFBF的多用户贪婪选择算法复杂度高的问题,给出了一个用户丢弃准则,采用该准则的改进算法相比已有算法不仅性能上几乎没有任何损失,而且能显著减少每次进行用户选择时所需考察的备选用户数,从而降低计算复杂度。仿真结果表明,当信噪比较低时,采用该用户丢弃准则使得计算复杂度的下降超过50%。

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