PCA-Aided Linear Precoding in Massive MIMO Systems with Imperfect CSI

<div>The system performance according to <i>ϕ</i> at SNR = 24 dB and 27 dB with <span class="nowrap"><svg height="12.599pt" id="M212" style="vertical-align:-3.2911pt" version="1.1" viewbox="-0.0498162 -9.3079 185.93 12.599" width="185.93pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M822 650H589L583 622C660 617 677 607 674 561C672 534 664 481 647 390L600 137H596L273 650H126L120 622C176 620 194 615 207 594C221 571 225 557 214 504L161 257C141 166 129 112 121 85C108 42 83 30 29 28L23 0H260L266 28C193 33 173 42 176 89C178 122 186 172 202 255L256 527H259L583 -8H612L690 390C708 481 720 535 728 558C744 603 756 619 816 622L822 650Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,10.062,3.132)"><path d="M655 676H628C608 656 600 650 571 650H156C118 650 114 651 102 676H77C63 615 45 548 24 485L60 486C81 531 97 562 114 580C134 603 148 611 252 611H308L217 127C201 41 196 38 105 32L98 0H384L393 32C300 38 288 41 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Wireless Communications and Mobile Computing

fig8

Figure 8

Figure 8: PCA-Aided Linear Precoding in Massive MIMO Systems with Imperfect CSI 