[1]刘晓明 解志强 彭芳芳.基于3GPP标准的Turbo码译码器设计与实现[J].计算机技术与发展,2010,(11):22-24.
　LIU Xiao-ming,XIE Zhi-qiang,PENG Fang-fang.Design and Implementation of Turbo Decoder Based on 3GPP[J].,2010,(11):22-24.
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基于3GPP标准的Turbo码译码器设计与实现()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2010年11期
页码:
22-24
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
Design and Implementation of Turbo Decoder Based on 3GPP
文章编号:
1673-629X（2010）10-0022-03
作者:
刘晓明 解志强 彭芳芳
重庆大学通信工程学院
Author(s):
LIU Xiao-ming; XIE Zhi-qiang; PENG Fang-fang
College of Communication Engineering,Chongqing University
关键词:
Turbo码; 3GPP; FPGA; 译码器
Keywords:
Turbo code;  3GPP;  FPGA;  decoder
分类号:
TP311
文献标志码:
A
摘要:
文中针对3GPP标准的Turbo码的性能进行仿真分析,基于课题的要求,根据性能和FPGA硬件实现复杂度提出了一种新颖的译码器方案。本方案采用在分量译码器计算前向递推的数据时,只对前向递推量进行存储,在后续过程中将同时计算出的分支度量和后向递推量结合已经存储的前向递推量直接更新信息比特的似然信息和外信息,节省了硬件存储器资源,提高了译码吞吐量,根据硬件系统时钟可推算出大致的译码吞吐量,达到课题要求。本方案的思想同样可推广应用于其他标准的Turbo码译码器
Abstract:
Analyse the performance of Turbo code based on 3GPP protocol through simulation,in accordance with the requirements of the subject,a novel decoder scheme is proposed considering the performance and the implementation complexity of FPGA.This scheme only stores the forward path metrics in the process of computing itself,in the next round it computes the branch metrics and backward path metrics simultaneously,which are combined with the forward path metrics stored in the first round immediately in the purpose of updating LLR and extrinsic information of the information bits.This scheme saves lots of hardware memory resources and improves the throughput of decoder which can be estimated according to the system clock.The requirement of the subject can be achieved using this scheme,and this scheme can also be used in the other Turbo decoders of different standards

相似文献/References:

[1]张鹏 张代远[].WCDMA中Turbo码质数交织器的研究与仿真[J].计算机技术与发展,2012,(11):93.
　ZHANG Peng,ZHANG Dai-yuan.Research and Simulation of Turbo Code Prime Interleaver in WCDMA[J].,2012,(11):93.

备注/Memo

备注/Memo:
国家发改委CNGI示范工程项目（CNGI-04-4-2D）刘晓明（1963-），男，重庆市人，博士后，教授，研究方向为扩频通信、宽带无线通信
更新日期/Last Update: 1900-01-01