基于条件矩阵的LDPC码构造及其在MBC系统中的应用  

Construction of LDPC Codes Based On Conditional Matrices and Its Application in MBC System

作　　者：李强[1] 何欢[1] 陈瑾[2] 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院无线通信系,江苏南京210007

出　　处：《军事通信技术》2008年第4期10-14,共5页Journal of Military Communications Technology

摘　　要：根据流星余迹信道的特点,在分析LDPC编译码算法的基础上,提出在流星余迹通信(MBC)中使用基于条件矩阵的LDPC编码,使其适应流星信道特点,提高系统性能。仿真结果表明,这种LDPC编码较RS码和Mackay随机构造的LDPC编码有更优的性能。Based on the characteristics of MBC(Meteor Burst Communicaiton) channel,and the analysis of the encoding and decoding algorithm of LDPC(Low Density Parity-Check),an LDPC coding algorithm based on conditional matrices was presented.This coding algorithm can improve the system performance by accommodating the characteristic of MBC channel.Simula-tion results show that the algorithm has better performance than RS codes and Mackay's codes.

关 键 词：流星余迹通信 循环置换矩阵填充 低密度校验码 

分 类 号：TN92[电子电信—通信与信息系统]