An adaptive modulation technique for multiuser MIMO systems with multiuser diversity is proposed.

摘要提出一种在MIMO系统中采用自适应调制实现可变速率多用户分集的方案.

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Theoretic analysis and numerical calculation show that adaptive modulation will improve the spectral efficiency.

理论分析和数值计算结果表明,自适应调制提高了系统的频谱效率.

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The adaptive modulation opportunistically transmits more information over subcarriers of the UWB with better SNR.

通过自适应调制,在信噪比较好的子载波上传输更多的信息,从而提高了超宽带链路的鲁棒性.

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Even if correlation coefficient reaches 0.8 , STBC - AM still outperforms simple adaptive modulation schemes.

即使相关系数为0.8时, STBC -AM还是远优于一般的自适应调制系统.

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