单校验码为子码的多维Turbo乘积码性能分析  

The Performance of Multidimensional Turbo Product Codes with Single Parity Codes as Subcode

作　　者：刘军[1] 刘舜民[2] 

机构地区：[1]同济大学经济管理学院,上海200092 [2]黄淮学院物理系,河南驻马店463000

出　　处：《常熟理工学院学报》2005年第4期93-97,共5页Journal of Changshu Institute of Technology

摘　　要：Turbo乘积码是一类易于硬件实现高速迭代译码的分组码,本文对单校验码为子码的高维Turbo乘积码的软输入软输出迭代译码算法进行了详细的分析。进而将其与QAM调制结合起来,提出了一种简化的、便于硬件实现的联合解调译码方案,充分利用了高维Turbo乘积码优越的纠错性能。仿真结果表明这种简化方案在高斯和衰落信道下的译码性能很好。Turbo product codes are a kind of block codes,which can be decoded at high speed by hardware. By studying soft-in and soft-out iterative decoding algorithm of turbo product codes especially those with single parity codes as subcode, combined with QAM modulation, we give a joint demodulation and iterative decoding algorithm which is simple and easy to implement in hard＇re. Results of simulation show that performance of this simplified scheme of decoding over AWGN and fading channels is fairly good.

关 键 词：TURBO乘积码 单校验码 QAM调制 软输入软输出译码 

分 类 号：TN911.22[电子电信—通信与信息系统]