Optimization of Training Signal Transmission for Estimating MIMO Channel under Antenna Mutual Coupling Conditions
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2010
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Abstract
This paper reports investigations on the effect of antenna mutual coupling on performance of training-based Multiple-Input Multiple-Output (MIMO) channel estimation. The influence of mutual coupling is assessed for two training-based channel estimation methods, Scaled Least Square (SLS) and Minimum Mean Square Error (MMSE). It is shown that the accuracy of MIMO channel estimation is governed by the sum of eigenvalues of channel correlation matrix which in turn is influenced by the mutual coupling in transmitting and receiving array antennas. A water-filling-based procedure is proposed to optimize the training signal transmission to minimize the MIMO channel estimation errors.
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liu2010optimizationinternational
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| Authors | Liu, Xia;Bialkowski, Marek E.; |
| Journal | international journal of antennas and propagation |
| Year | 2010 |
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| Keywords | Keywords not found |
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