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电子学报  2007 

MIMO相关信道估计中训练序列的最优结构和最佳长度

, PP. 35-40

Keywords: 多输入多输出,信道估计,训练序列,空域相关,信道容量

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Abstract:

针对存在空域相关性的多输入多输出(Multiple-InputMultiple-Output,MIMO)信道,首先设计了适用于任何给定长度的最优训练序列,该序列能够充分利用已知的信道相关信息,且具有估计均方误差最小化的特性.在此基础上,分析了相关信道下采用训练估计的数据传输机制所能达到的容量下界,得出了满足估计准确性和数据速率最优折中的最佳训练序列长度.最后,通过仿真验证了本文给出的训练序列的性能和最佳长度取值的有效性.

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