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Linear precoding for space-time coded systems with known fading correlations
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AI
DOI：10.1109/LCOMM.2002.1010867.png)
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摘要
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We design an optimal linear precoder for a space-time coded system assuming knowledge of only the transmit antenna fading correlations. Assuming a flat fading channel and a maximum-likelihood receiver, we show that the linear precoder transmits power on the eigenmodes of the transmit antenna correlation matrix. The power allocation on the eigenmodes is a form of waterpouring policy. Simulation results are presented to show performance improvement on a space-time coded system.
Keyword:
fading correlations
linear precoding
MIMO
space-time coding
期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
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