Turbo Decoding: Why Stopping-Criteria do Work

被引:1
作者
Heim, Axel [1 ]
Sorger, Ulrich [2 ]
机构
[1] Univ Ulm, Inst Telecommun & Appl Informat Theory, D-89069 Ulm, Germany
[2] Univ Luxembourg, Comp Sci & Commun, Luxembourg, Luxembourg
来源
2008 5TH INTERNATIONAL SYMPOSIUM ON TURBO CODES AND RELATED TOPICS | 2008年
关键词
Turbo decoding; Belief-Propagation; Convergence; Bit-Information set; Stopping-Criteria;
D O I
10.1109/TURBOCODING.2008.4658707
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
The convergence or iterative decoding schemes is considered. The class of dually coupled codes is recalled, being a super class to both Turbo and LDPC codes. It is proven that the output L-values of a Turbo decoder cannot grow to infinity, while those of an LDPC decoder can. Finally, a new decoder parameter is introduced by which the convergence behavior can be controlled.
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页码:255 / +
页数:2
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