Linear precoding for space-time coded systems with known fading correlations
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 correla...
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| Veröffentlicht in: | IEEE communications letters 2002-06, Vol.6 (6), p.239-241 |
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| container_title | IEEE communications letters |
| container_volume | 6 |
| creator | Sampath, H. Paulraj, A. |
| description | 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. |
| doi_str_mv | 10.1109/LCOMM.2002.1010867 |
| format | Article |
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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. 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| ispartof | IEEE communications letters, 2002-06, Vol.6 (6), p.239-241 |
| issn | 1089-7798 1558-2558 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Allocations Antennas Applied sciences Channel capacity Channels Coding, codes Correlation Design engineering Downlink Exact sciences and technology Fading Information, signal and communications theory MIMO Optimization Performance gain Receiving antennas Scattering Signal and communications theory Simulation System performance Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Transmitters Transmitting antennas |
| title | Linear precoding for space-time coded systems with known fading correlations |
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