Information-Theoretic Analysis of Underwater Acoustic OFDM Systems in Highly Dispersive Channels

<table>Lower bound (<a href="https://static.hindawi.com/articles/jece/volume-2012/716720/figures/#EEq38">39</a>) as a function of the channel spread factor for a Rayleigh fading channel with a brick-shaped scattering function and white Gaussian Noise. <svg height="14.8575" id="M185" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 44.108749 14.8575" width="44.108749" xmlns="http://www.w3.org/2000/svg">
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<text transform="matrix(1,0,0,-1,0.498,2.786)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜌</tspan>
<tspan style="font-size: 12.50px; " x="9.7399302" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.780436" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="28.031996" y="0">5</tspan>
</text>
</g>
</svg> dB and <svg height="12.21625" id="M186" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 39.326248 12.21625" width="39.326248" xmlns="http://www.w3.org/2000/svg">
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<text transform="matrix(1,0,0,-1,0.498,0.673)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐵</tspan>
<tspan style="font-size: 12.50px; " x="12.165536" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="24.206039" y="0">5</tspan>
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</svg> kHz.</table>

Journal of Electrical and Computer Engineering

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Figure 1

Figure 1: Information-Theoretic Analysis of Underwater Acoustic OFDM Systems in Highly Dispersive Channels 