This paper looks at the problem of optimizing a given Parallel Concatenated Convolutional Code (PCCC) via an iterative process of trace-bit injection which minimally reduces the code rate, followed by selective puncturing that allows recovery of the rate loss incurred during the trace-bit injection. The technique allows for optimization of any linear PCCC. The optimization is in the sense of trimming the distance spectrum of the overall PCCC via elimination of the low distance and/or highmultiplicity codewords from the output space of the code, using a cost function closely related to the asymptotic bit error probability of the code. This improves the performance of the code everywhere, but the main impact of the optimization process is a reduction in the error floor of the PCCC.

Turbo Codes Optimization via Trace-Bit Injection and Selective Puncturing / F., Daneshgaran; Mondin, Marina; P., Mulassano. - STAMPA. - 3:(2002), pp. 1706-1710. (Intervento presentato al convegno International Conference on Communications, ICC 2002 tenutosi a New York, NY (USA) nel 28 April - 2 May 2002) [10.1109/ICC.2002.997140].

Turbo Codes Optimization via Trace-Bit Injection and Selective Puncturing

MONDIN, Marina;
2002

Abstract

This paper looks at the problem of optimizing a given Parallel Concatenated Convolutional Code (PCCC) via an iterative process of trace-bit injection which minimally reduces the code rate, followed by selective puncturing that allows recovery of the rate loss incurred during the trace-bit injection. The technique allows for optimization of any linear PCCC. The optimization is in the sense of trimming the distance spectrum of the overall PCCC via elimination of the low distance and/or highmultiplicity codewords from the output space of the code, using a cost function closely related to the asymptotic bit error probability of the code. This improves the performance of the code everywhere, but the main impact of the optimization process is a reduction in the error floor of the PCCC.
2002
0780374002
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1662964
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