Proceedings Article10.1109/ACSSC.2001.986914
Linear precoding for space-time coded systems with known fading correlations
H. Sampath,Arogyaswami Paulraj +1 more
- 01 Jan 2001
- Vol. 1, pp 246-251
124
TL;DR: It is shown that the linear precoder transmits power on the eigenmodes of the transmit antenna correlation matrix, a form of waterpouring policy, to show performance improvement on a space-time coded system.
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Abstract: 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.
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Citations
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Marcos Katz,J. Ylitalo +1 more
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TL;DR: In this article, the authors extended the space time transmit diversity (STTD) approach to the case of an antenna array, where angular (beam) domain is exploited, and showed that the performance of a CDMA base station can be significantly improved by applying this technique to a code division multiple access (CDMA) base station.
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