Tightness of Semidefinite Programming Relaxation to Robust Transmit Beamforming with SINR Constraints

<table>Smallest eigenvalue of <svg height="15.4" id="M425" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 61.424999 15.4" width="61.424999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> versus target SINR <svg height="12.175" id="M426" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 8.6374998 12.175" width="8.6374998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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Mathematical Problems in Engineering

fig2

Figure 2

Figure 2: Tightness of Semidefinite Programming Relaxation to Robust Transmit Beamforming with SINR Constraints 