摘要
为了在高速数据中继传输中保证高效率高功率的前提下达到很低的误码率,介绍了置信传播(Belief Propagation,BP)译码算法,仿真证明了基于欧式几何构造的(8 176,7 154)准循环(Quasi Cyclic,QC)低密度奇偶校验码(Low Density Parity Check,LDPC),简称QC-LDPC码是一种高速低误码率低复杂度的高效信道纠错编码,并通过仿真跟踪分析,提出了一种新的译码迭代终止条件,使译码仿真性能得到进一步优化。
To keep a low bit error rate in high-speed data relay transmission, the belief propagation decoding algorithm is introduced first, then the （8176,7154） QC-LDPC codes based on Euclidean geometry is constructed,and the simulation results prove that the QC-LDPC is a high-speed, Iow-BER and high-efficiency channel encoding method. Finally a new decoding ending term is proposed, which further improves the simulation performance.
出处
《无线电通信技术》
2011年第1期24-26,40,共4页
Radio Communications Technology
关键词
置信传播
译码
LDPC
迭代
belief propagation
decoding
LDPC
iterative
