Partially Systematic Rate 1/2 Turbo Codes
نویسندگان
چکیده
Partially systematic parallel concatenated (turbo) codes of rate 1/2 are considered. These are generated from a classical rate 1/3 turbo code by puncturing both the parity bits and the systematic bits. The so-called “error-floors” of the resulting codes are lower than those of their systematic counterparts. For some puncturing patterns, even the “waterfall region” is shifted to lower signal-to-noise ratios. Hence, the performance of rate 1/2 turbo codes can be enhanced by simply spreading the puncturing over the parity and the systematic bits without increasing encoding and decoding complexity.
منابع مشابه
Comparison of Convolutional Coupled Codes and Partially Systematic Turbo Codes for Medium Code Lengths
Ingmar Land Information and Coding Theory Lab University of Kiel, Germany e-mail: [email protected] http://www.tf.uni-kiel.de/ict Slim Chaoui Institute for Communications Technology Darmstadt University of Technology, Germany e-mail: [email protected] http://www.nesi.e-technik.tu-darmstadt.de Abstract | Two classes of concatenated codes of rate 1/2 and medium code lengths (600, 2000) ar...
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