摘要: |
在分析传统LDPC编码方式的基础上,提出一种基于本原多项式实现LDPC编码的新方
法。根据特定LDPC码长选择合适的本原多项式作为子矩阵,对子矩阵进行行列分解、组合,
最终构建LDPC码校验矩阵〖WTHX〗H〖WTBZ〗。仿真实验结果和工程应用证明:新算法构建
的LDPC码在恶
劣的通信环境下,误码率、误帧率优于传统Mackay-LDPC码,具有较好的性能。 |
关键词: LDPC 本原多项式 矩阵分解 校验矩阵 |
DOI: |
|
基金项目:重庆市教委科技研究项目(KJ111112);重庆三峡学院青年基金资助
项目(10QN-32) |
|
A New LDPC Code Construction Algorithm Based on Primitive Polynomial |
CAI Li,DAI Ni-na,DAI Min-lu |
() |
Abstract: |
A new LDPC(Low Density Parity Check) code constructed by primitive polynomial is
proposed based on analysis of traditional LDPC. The appropriate primitive polyn
omials are s
elected as the sub-matrixes by the length of the specific LDPC. Then the matrixe
s are decomposed a
nd combined to construct the check matrix. The simulation and engine
ering applications prove that the performance of LDPC code constructed by propos
ed algorithm is be
tter than that of Mackay-LDPC. The BER(Bit Error Rate) and FER(Frame Error Rate)
are both lower in the bad communication e
nvironment. |
Key words: LDPC primitive polynomial matrix decomposition check matrix |