摘要
介绍了LDPC码的结构类型和译码实现,分析了环的连接性对误码性能的影响,详细阐述了停止集、EMD(Extrinsic Message Degree)、ACE(Approximate Cycle EMD)的关系,之后提出一种基于ACE的准循环LDPC码的构造方法,该方法可最大化围长和小停止集,仿真证明该方法具有良好的性能。
In this paper,LDPC code structure and decoder implementation is reviewed.The effect of graph connectivity on LDPC performance is analyzed.The relations of stopping set,EMD and ACE are described.A construction algorithm with ACE constraint is proposed which maximize the girth and stopping sets in a best effort way.Simulation results justify the efficiency of the algorithm.
出处
《电视技术》
北大核心
2010年第12期20-22,29,共4页
Video Engineering
