几种用于Turbo码的交织器分析

应用科学学报 ›› 2002, Vol. 20 ›› Issue (1): 38-41.

几种用于Turbo码的交织器分析

赵光玲, 吴乐南

东南大学无线电工程系, 江苏南京 210096

收稿日期:2000-11-22 修回日期:2001-05-31 出版日期:2002-03-31 发布日期:2002-03-31
作者简介:赵光玲(1964-),男,江苏镇江人,讲师,博士生;吴乐南(1952-),男,江苏南京人,教授,博导.
基金资助:
国家自然科学基金资助项目(60072013)

An Analysis of the Inter leavers for Turbo Codes

ZHAO Guang-ling, WU Le-nan

Department of Radio Engineering, Southeast University, Nanjing 210096, China

Received:2000-11-22 Revised:2001-05-31 Online:2002-03-31 Published:2002-03-31

摘要/Abstract

摘要： 将一系列常用交织器应用于Turbo码系统,并分别进行了仿真计算,比较了采用不同交织器Turbo码的性能,提出了将两个交织器结合起来构成新的交织器的方法.由于信息位和未经交织的校验位之间时间上的相关性,通过采用再加一级符号交织器的办法,进一步减小相邻位之间的相关性,结果表明在Rayleigh信道下可进一步降低误码率.

关键词: 交织器, Turbo码, 迭代Max-log-MAP算法

Abstract: Several interleavers are applied to Turbo codes and simulated respectively. The performances are compared with each other. A new interleaving scheme is put forward by this paper that combines two different types of interleaver into a new interleaver. Since there is a strong correlation in time between information bits and check bits produced by the first constituent encoder not being interleavered, an additional symbol interleaver is added to the multiplexer to reduce the bit error rate ulteriorly in the flat Rayleigh fading channel.

Key words: interleaver, Turbo codes, iterative Max-log-MAP algorithm

中图分类号:

TN911

赵光玲, 吴乐南. 几种用于Turbo码的交织器分析[J]. 应用科学学报, 2002, 20(1): 38-41.

ZHAO Guang-ling, WU Le-nan. An Analysis of the Inter leavers for Turbo Codes[J]. Journal of Applied Sciences, 2002, 20(1): 38-41.

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