Open-Loop Beamforming Technique for MIMO System and Its Practical Realization

<table>Examples of <svg height="11.625" id="M80" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 17.762501 11.625" width="17.762501" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.625)">
<g transform="translate(72,-62.7)">
<text transform="matrix(1,0,0,-1,-71.95,62.75)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐇</tspan>
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<text transform="matrix(1,0,0,-1,-62.22,67.92)">
<tspan style="font-size: 8.75px; " x="0" y="0">a</tspan>
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</g>
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</svg> with different angle spreads at transmitter and receiver.</table>

International Journal of Antennas and Propagation

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Figure 2

Figure 2: Open-Loop Beamforming Technique for MIMO System and Its Practical Realization 