| TURBO码中的交织器设计及其改进 |
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| 引用本文： | 徐韦峰,秦东,刘石,周汀.TURBO码中的交织器设计及其改进[J].微电子学,2000,30(2):92-96. |
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| 作者姓名： | 徐韦峰 秦东 刘石 周汀 |
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| 作者单位： | 复旦大学,专用集成电路与系统设计实验室,上海,200433 |
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| 摘 要： | Turbo码是近年来提出的一种信道编码.该系统在编码时采用并行的反馈系统卷积码(RSC).在编码的同时,对原始信息和经过交织(interleave)乱序的信息进行编码.Turbo码的解码一般采用软输入软输出解码器(SISO).其解码算法主要有SOVA、MAP以及改进的LOGMAN算法.Turbo码的编解码中,交织器的性能是一个关键问题.文章对交织器的设计和各种交织器的性能进行了探讨,并提出了一种易于硬件实现的交织器设计方法.
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| 关 键 词： | Turbo码 交织器 反馈卷积码 设计 |
| 文章编号： | 1004-3365(2000)02-0092-05 |
| 修稿时间： | 1999年6月10日 |
Design of Interleavers in Turbo Codes and Its Improvement |
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| XU Wei-feng,QIN Dong,LIU Shi,ZHOU Ting.Design of Interleavers in Turbo Codes and Its Improvement[J].Microelectronics,2000,30(2):92-96. |
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| Authors: | XU Wei-feng QIN Dong LIU Shi ZHOU Ting |
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| Abstract: | Turbo code is a new class of binary parallel concatenated recursive systematic convolutional codes.When a frame of information bits are input,they are first interleaved,then the original and the interleaved information bits are encoded.Because of the characteristics of the decoding algorithm,MAP,soft in soft out(SISO) decoder is adopted to decode the Turbo code.The design of various interleavers is discussed and their performances are compared.Moreover,a new interleaver termed random row column is proposed,which can dramatically reduce the usage of memory while maintaining good performance. |
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| Keywords: | Turbo code LOGMAN algorithm Interleaver Recursive systematic convolutional code |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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