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On decoding of multidimensional single parity turbo product codes

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2 Author(s)
Janvars, T. ; Dept. of Telecommun., Slovak Tech. Univ. in Bratislava, Slovakia ; Farkas, P.

The paper deals with an iterative decoding algorithm for two or more dimensional turbo product codes, built using single parity block codes. Decoding is based on soft-input/soft-output (SISO) decoders for decoding component codes. The soft inputs of the decoder include two values, the soft channel value and an a priori value. The soft output of the component's decoder is an extrinsic value, which is an estimation of the log-likelihood ratio (LLR) of binary decisions given by the decoding algorithm. The extrinsic values are used in feedback as a priori information. Simulations show that simple parity block codes used as the component codes gives quite good results, although a very simple decoding algorithm is used.

Published in:

Mobile Future and Symposium on Trends in Communications, 2003. SympoTIC '03. Joint First Workshop on

Date of Conference:

26-28 Oct. 2003