A Programmable Max-Log-MAP Turbo Decoder Implementation

High-level
program flow of the turbo decoder. Parallelism is denoted with  <svg height="13.45" id="M157" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 8.9875002 13.45" width="8.9875002" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">|</tspan>
<tspan style="font-size: 12.50px; " x="4.576098" y="0">|</tspan>
</text>
</g>
</g>
</svg>.
Code block length and window length are denoted with <svg height="10.325" id="M158" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 13.2875 10.325" width="13.2875" 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">𝐾</tspan>
</text>
</g>
</g>
</svg> and <svg height="14.3875" id="M159" style="vertical-align:-3.25792pt" version="1.1" viewbox="0 0 28.225 14.3875" width="28.225" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.3875)">
<g transform="translate(72,-60.49)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐿</tspan>
</text>
<text transform="matrix(1,0,0,-1,-63.1,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">w</tspan>
<tspan style="font-size: 8.75px; " x="6.318944" y="0">i</tspan>
<tspan style="font-size: 8.75px; " x="8.7519999" y="0">n</tspan>
</text>
</g>
</g>
</svg>,
respectively.

VLSI Design

alg1

Algorithm 1

Algorithm 1: A Programmable Max-Log-MAP Turbo Decoder Implementation 