关键词：LDPC译码；串行消息传递；迭代译码；变量节点；校验节点 [gap=1134] low-density parity-cheek(LDPC)codes；serial saedule；itemtive decoding；bit nodes；check nodes
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校验节点处理单元 Check Node processing Unit ; CNU
一个校验节点处理单元 Check Node processing Unit ; CNU
校验节点单元 Check Node Unit
校验节点更新单元 CNU
校验节点的概率信息 Check NodeUpdate ; CNU
为保证码字性能，提出了校验节点合并的三个限制条件。
And three restriction conditions for merging check nodes are proposed in order to get good performance codes.
在此基础上引入基于校验节点的串行消息传递机制并提出具体可实现的解码算法模型。
On this basis, we introduce a serial mechanism based on check nodes and propose a concrete and feasible decoding algorithm modeling.
该文研究多个存活校验节点的作用，提出MSCN打孔方案最大化打孔节点的存活校验节点数。
This paper investigates the effect of multiple survived check nodes, and proposes an effective puncturing scheme called MSCN, which maximizes the number of survived check nodes.
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