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首页> 外文期刊>Communications Letters, IEEE >Reliability-Based Iterative Decoding Algorithm for LDPC Codes With Low Variable-Node Degree
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Reliability-Based Iterative Decoding Algorithm for LDPC Codes With Low Variable-Node Degree

机译:低可变节点度的LDPC码基于可靠性的迭代译码算法

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摘要

In this letter, a new reliability-based iterative majority-logic decoding (RBI-MLGD) algorithm that computes the extrinsic information of previous iterations of the variable node is proposed. This decoding algorithm is called historical-extrinsic reliability-based iterative decoder (HE-RBID) and improves the bit-error-rate performance of the previous RBI-MLGD. HE-RBID is particularly interesting for codes with a low degree of variable node, where traditional RBI-MLGD algorithms do not provide a good behavior. HE-RBID ensures a good performance without searching for the minimum at the check node and only by exchanging 1-bit messages between variable and check nodes.
机译:在这封信中,提出了一种新的基于可靠性的迭代多数逻辑解码(RBI-MLGD)算法,该算法可计算变量节点先前迭代的外部信息。这种解码算法称为基于历史外部可靠性的迭代解码器(HE-RBID),可提高以前的RBI-MLGD的误码率性能。对于具有低可变节点度的代码,HE-RBID尤为有趣,而传统的RBI-MLGD算法无法提供良好的性能。 HE-RBID可以确保良好的性能,而无需在校验节点上搜索最小值,而只需在变量节点和校验节点之间交换1位消息即可。

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