Effect of Antenna Mutual Coupling on MIMO Channel Estimation and Capacity

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="306173.fig.002a" src="https://static.hindawi.com/articles/ijap/volume-2010/306173/figures/306173.fig.002a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>MMSE MSE versus transmitter antenna spacing</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="306173.fig.002b" src="https://static.hindawi.com/articles/ijap/volume-2010/306173/figures/306173.fig.002b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>SLS MSE versus receiver antenna spacing</td></tr></table></td></tr></table>

<table>MSE of training-based channel estimation for a 4 <svg height="8.5" id="M177" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 10.1 8.5" width="10.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,8.438)"><path d="M528 54l-36 -38l-198 201l-198 -201l-36 38l197 200l-197 201l36 38l198 -202l198 202l36 -38l-197 -201z" id="xD7"></path></g>
</svg> 4 MIMO considering mutual coupling effect versus transmitter or receiver antenna spacing at SNR equal to 25 dB. (a) MMSE MSE versus transmitter antenna spacing, receiver antenna spacing is set to 1<svg height="12.4375" id="M178" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.5124998 12.4375" width="9.5124998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M529 97q-70 -109 -136 -109q-41 0 -56 94q-23 144 -37 284q-38 -88 -99 -202.5t-93 -156.5q-26 -8 -76 -19l-9 21q71 78 145.5 193t124.5 232q-5 84 -15 128q-12 55 -29.5 75.5t-42.5 20.5q-21 0 -45 -13l-8 24q16 17 46 30t55 13q43 0 70 -46.5t40 -169.5
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</svg>. (b) SLS MSE versus transmitter antenna spacing, receiver antenna spacing is set to 1<svg height="12.4375" id="M179" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.5124998 12.4375" width="9.5124998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M529 97q-70 -109 -136 -109q-41 0 -56 94q-23 144 -37 284q-38 -88 -99 -202.5t-93 -156.5q-26 -8 -76 -19l-9 21q71 78 145.5 193t124.5 232q-5 84 -15 128q-12 55 -29.5 75.5t-42.5 20.5q-21 0 -45 -13l-8 24q16 17 46 30t55 13q43 0 70 -46.5t40 -169.5
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</svg>.</table>

International Journal of Antennas and Propagation

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Figure 2

Figure 2: Effect of Antenna Mutual Coupling on MIMO Channel Estimation and Capacity 