一种应用于ARQ系统的新型Turbo码译码方案  

A Novel Turbo Decoding Solution for ARQ System

作　　者：王视环[1] 王振宇[1] 周月臣[1] 

机构地区：[1]南京邮电学院通信工程系,江苏南京210003

出　　处：《南京邮电学院学报（自然科学版）》2003年第2期50-53,共4页Journal of Nanjing University of Posts and Telecommunications

摘　　要：在介绍了FEC和ARQ技术的优缺点及分析了Turbo码迭代译码特点的基础上,提出了一种应用于ARQ系统中的Turbo码新型迭代译码方案,在不增加译码复杂度的前提下,首发帧和重发帧交替迭代,充分利用两帧的信息。在AWGN信道和相干瑞利信道下的仿真结果表明,新方案能显著改善译码性能。This paper introduces the advantages and weaknesses of both FEC and ARQ techniques,and analyzes the specialities of the Turbo decoding. A novel Turbo decoding solution for ARQ system is proposed .The solution iterates the first transmitted frame and the retransmitted frame alternately and makes full use of the information of the two frames without increasing calculation complexity. Simulation results for AWGN and correlative Rayleigh fading channels show that the solution improves the performance of Turbo decoding effectively.

关 键 词：ARQ TURBO码 自动请求重传 迭代译码 交替迭代 

分 类 号：TN911.22[电子电信—通信与信息系统]