New Stopping Criterion of Turbo Decoding for Turbo Processing

Dong-Kyoon CHO  Byeong-Gwon KANG  Yong-Seo PARK  Keum-Chan WHANG  

IEICE TRANSACTIONS on Communications   Vol.E87-B   No.1   pp.161-164
Publication Date: 2004/01/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories
turbo codes,  stopping criteria,  MIMO,  

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A new stopping criterion of turbo decoding based on the maximum a posteriori (MAP) decoder is proposed and applied to the turbo processing system. The new criterion suggested as the combined parity check (CPC) counts the sign difference between combined parity bits and the re-encode parity bits determined from decoded information bits. The CPC requires decoded parity bits and a turbo encoder but it performs better in terms of the bit error rate and the average number of iterations in the turbo processing system.