改进的基于剩余度置信度传播的LDPC解码算法
发布时间：2018-12-06 09:58
【摘要】：低密度奇偶校验(LDPC,Low-Density Parity-Check)码的剩余度置信度传播(RBP,Residual Belief-Propagation)和基于行的剩余度置信度传播(NWRBP,Node-Wise RBP)解码算法的性能提升非常有限且计算复杂度较高.提出改进的RBP(ERBP,Enhanced RBP)算法,在一个子迭代中,仅更新一个消息,然后设置被更新消息所在行的所有节点的剩余度值为0,使得ERBP解码算法在每个子迭代中使用不同行的消息进行计算,以加速迭代收敛.不同的LDPC码用于对所提出的算法进行性能仿真.仿真结果表明,与其他算法相比,ERBP算法降低了误帧率(FER,Frame Error Ratio),并加快了迭代收敛速度.
[Abstract]:Residual confidence Propagation (RBP,Residual Belief-Propagation) and Row based residual confidence Propagation (NWRBP,) of low density parity check (LDPC,Low-Density Parity-Check) codes Node-Wise RBP) decoding algorithm has very limited performance improvement and high computational complexity. An improved RBP (ERBP,Enhanced RBP) algorithm is proposed, in which only one message is updated in a subiteration, and the residual value of all nodes in the row of the updated message is set to 0. The ERBP decoding algorithm is computed with different messages in each subiteration to accelerate the convergence of the iteration. Different LDPC codes are used to simulate the performance of the proposed algorithm. Simulation results show that compared with other algorithms, the ERBP algorithm reduces the frame error rate (FER,Frame Error Ratio),) and speeds up the iterative convergence.
【作者单位】： 北京航空航天大学电子信息工程学院;
【分类号】：TN911.22
本文编号：2365856
[Abstract]:Residual confidence Propagation (RBP,Residual Belief-Propagation) and Row based residual confidence Propagation (NWRBP,) of low density parity check (LDPC,Low-Density Parity-Check) codes Node-Wise RBP) decoding algorithm has very limited performance improvement and high computational complexity. An improved RBP (ERBP,Enhanced RBP) algorithm is proposed, in which only one message is updated in a subiteration, and the residual value of all nodes in the row of the updated message is set to 0. The ERBP decoding algorithm is computed with different messages in each subiteration to accelerate the convergence of the iteration. Different LDPC codes are used to simulate the performance of the proposed algorithm. Simulation results show that compared with other algorithms, the ERBP algorithm reduces the frame error rate (FER,Frame Error Ratio),) and speeds up the iterative convergence.
【作者单位】： 北京航空航天大学电子信息工程学院;
【分类号】：TN911.22
【相似文献】
相关期刊论文 前4条
1 王文,吴伟陵;信息论(五) 第五讲 信息处理[J];国外自动化;1981年06期
2 赵明;张晓林;;改进的基于剩余度置信度传播的LDPC解码算法[J];北京航空航天大学学报;2014年03期
3 蒋红艳,李闻,林亚平,张清华;网络流量测量中一种分布式有效测量点选择算法[J];湖南师范大学自然科学学报;2005年03期
4 ;[J];;年期
，本文编号：2365856
本文链接：https://www.wllwen.com/kejilunwen/wltx/2365856.html
