Two-Dimensional Iterative Processing for DAB Receivers Based on Trellis-Decomposition

<table>Bit-error performance with ideal LLRs for a decomposed multi-carrier trellis for different values of <svg height="10.325" id="M269" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 17.237499 10.325" width="17.237499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.325)">
<g transform="translate(72,-63.74)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑀</tspan>
</text>
</g>
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</svg> and <svg height="10.325" id="M270" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 14.8375 10.325" width="14.8375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.325)">
<g transform="translate(72,-63.74)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑁</tspan>
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</svg> but with a fixed block-size of <svg height="13.575" id="M271" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 100.025 13.575" width="100.025" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.575)">
<g transform="translate(72,-61.14)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑀</tspan>
<tspan style="font-size: 12.50px; " x="12.565515" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="16.729013" y="0">𝑁</tspan>
<tspan style="font-size: 12.50px; " x="30.144733" y="0">+</tspan>
<tspan style="font-size: 12.50px; " x="41.484955" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="47.736454" y="0">)</tspan>
<tspan style="font-size: 12.50px; " x="55.375786" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="67.403671" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="73.655174" y="0">6</tspan>
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</svg>.</table>

Journal of Electrical and Computer Engineering

fig7

Figure 7

Figure 7: Two-Dimensional Iterative Processing for DAB Receivers Based on Trellis-Decomposition 