Exit chart analysis of parallel data convolutional codes
Wei Xiang; Pietrobon, S.S.; Leis, J.
Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on
Volume , Issue , 13-16 Dec. 2005 Page(s): 417 - 420
Digital Object Identifier   10.1109/ISPACS.2005.1595435
Summary:We recently proposed a new class of turbo-like codes called parallel data convolutional codes (PDCCs). The distinct characteristics of PDCCs include parallel data input bits and a self-iterative soft-in/soft-out a posteriori probability (APP) decoder. In this paper, we analyse this turbo-like code by means of the extrinsic information transfer chart (EXIT chart). Our results show that the threshold E_b/N₀ point for a rate 1/2 8-state PDCC is 0.6 dB, which is the same as the threshold point for a punctured rate 1/2 16-state parallel concatenated convolutional code (turbo code).

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