Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations

<table>Relation between input SNR <svg height="19.075001" id="M240" style="vertical-align:-3.25793pt" version="1.1" viewbox="0 0 57.237499 19.075001" width="57.237499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,19.075)">
<g transform="translate(72,-56.74)">
<text transform="matrix(1,0,0,-1,-70.61,62.57)">
<tspan style="font-size: 12.50px; " x="0" y="0"></tspan>
<tspan style="font-size: 12.50px; " x="-1.34" y="2.54">𝐸</tspan>
</text>
<text transform="matrix(1,0,0,-1,-62.27,56.91)">
<tspan style="font-size: 8.75px; " x="0" y="0">L</tspan>
<tspan style="font-size: 8.75px; " x="5.3387198" y="0">O</tspan>
<tspan style="font-size: 8.75px; " x="11.657664" y="0">S</tspan>
</text>
<text transform="matrix(1,0,0,-1,-45.25,60.03)">
<tspan style="font-size: 12.50px; " x="0" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="3.4758339" y="0">𝑁</tspan>
</text>
<text transform="matrix(1,0,0,-1,-31.13,56.91)">
<tspan style="font-size: 8.75px; " x="0" y="0">0</tspan>
</text>
</g>
</g>
</svg> and output SNR LSNR for the short preamble codes with a spreading <svg height="11.0375" id="M241" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 46.212502 11.0375" width="46.212502" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.0375)">
<g transform="translate(72,-63.17)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐿</tspan>
<tspan style="font-size: 12.50px; " x="12.315455" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.355844" y="0">6</tspan>
<tspan style="font-size: 12.50px; " x="30.607344" y="0">4</tspan>
</text>
</g>
</g>
</svg> and <svg height="17.1" id="M242" style="vertical-align:-5.03984pt" version="1.1" viewbox="0 0 58.174999 17.1" width="58.174999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,17.1)">
<g transform="translate(72,-58.32)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑁</tspan>
</text>
<text transform="matrix(1,0,0,-1,-61.31,60.27)">
<tspan style="font-size: 8.75px; " x="0" y="0">p</tspan>
<tspan style="font-size: 8.75px; " x="4.3759999" y="0">r</tspan>
</text>
<text transform="matrix(1,0,0,-1,-50.05,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">6</tspan>
</text>
</g>
</g>
</svg> with respect to the IEEE 802.15.4a channels. The channel parameters in the legend are in GHz.</table>

Journal of Electrical and Computer Engineering

fig7

Figure 7

Figure 7: Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations 