Convergence Analysis and Design of Multiple Concatenated Codes
Convergence Analysis and Design of Multiple Concatenated Codes
Convergence Analysis and Design of Multiple Concatenated Codes
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Background<br />
<strong>Concatenated</strong> codes <strong>and</strong> iterative decoding<br />
• Original turbo code by Berrou, Glavieux, <strong>and</strong> Thitimajshima (BGT) (1993).<br />
• BGT: two punctured convolutional codes concatenated in parallel.<br />
• Performance close to capacity.<br />
EXIT charts for convergence analysis <strong>of</strong> iterative decoding<br />
• Two serially/parallel concatenated codes by ten Brink in (1999, 2000).<br />
• <strong>Multiple</strong> concatenated codes (MCCs) with N = 3 components in (2001, 2002).<br />
This presentation:<br />
• <strong>Multiple</strong> parallel concatenated codes (MPCCs).<br />
• <strong>Convergence</strong> analysis using projected EXIT charts.<br />
• Optimal puncturing ratios.<br />
• Optimal energy distribution.<br />
<strong>Convergence</strong> <strong>Analysis</strong> <strong>and</strong> <strong>Design</strong> <strong>of</strong> <strong>Multiple</strong> <strong>Concatenated</strong> <strong>Codes</strong>, Fredrik Brännström 2005 1
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