Optimization of Training Signal Transmission for Estimating MIMO Channel under Antenna Mutual Coupling Conditions

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="213576.fig.001a" src="https://static.hindawi.com/articles/ijap/volume-2010/213576/figures/213576.fig.001a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Sum of Channel Correlation Eigenvalues versus Transmitter Antenna Spacing</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="213576.fig.001b" src="https://static.hindawi.com/articles/ijap/volume-2010/213576/figures/213576.fig.001b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Sum of Channel Correlation Eigenvalues versus Receiver Antenna Spacing</td></tr></table></td></tr></table>

<table>Mutual coupling effects on the sum of channel correlation matrix eigenvalues. (a) Sum of eigenvalues versus transmitter antenna element spacing; (b) Sum of eigenvalues versus receiver antenna element spacing.</table>

International Journal of Antennas and Propagation

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Figure 1

Figure 1: Optimization of Training Signal Transmission for Estimating MIMO Channel under Antenna Mutual Coupling Conditions 