基于新型Turbo-LDPC编码方案的OFDM系统研究  

Study on OFDM System Based on New Coding Scheme of Turbo-LDPC

作　　者：夏冰[1] 陈发堂[1] 

机构地区：[1]重庆邮电大学,重庆400065

出　　处：《电视技术》2008年第z1期113-116,共4页Video Engineering

摘　　要：在分析低密度校验码(LDPC)和Turbo码编码特性的基础上,将两种编码方案相结合,提出了一种新型的LDPC码--Tur-bo-LDPC码,并且把这种改进型编码应用到正交频分复用(OFDM)系统中。该编码方案综合了两种纠错编码算法的优点。理论分析和仿真实验显示这种新型编码方案能够改善OFDM系统的性能,具有一定的实用性。Based on the combination of Low Density Parity Check(LDPC) code and Turbo code,is applied a new type of LDPC code--Turbo-LDPC code is proposed, and the improved coding scheme is applied to OFDM system. The scheme integrates the advantages of two kinds of error correction coding algorithm. Theoretical analysis and simulation experiments show that this new type of coding scheme improves the performance of OFDM system and has a certain practicality.

关 键 词：正交频分复用 低密度校验码 TURBO码 Turbo-LDPC码 

分 类 号：TN911.22[电子电信—通信与信息系统]