串行级联卷积码在AWGN信道上的性能分析  

Analysis of Serial Concatenated Convolutional Code in AWGN Channel

作　　者：陈颖瑞[1] 葛万成[1] 

机构地区：[1]同济大学中德学院,上海200092

出　　处：《通信技术》2009年第3期40-42,共3页Communications Technology

基　　金：德国罗德与施瓦茨公司基金资助项目

摘　　要：文中对串行级联卷积编码(Serial Concatenated Convolutional Code,SCCC)的原理和结构进行了详细的分析,并对其在低信噪比条件下通过AWGN信道时的纠错能力进行了仿真研究。仿真结果表明,在相同信噪比的情况下,交织器的交织长度和接收端译码算法的迭代次数都对系统误码率有很大影响,并给出了合适的交织长度和迭代次数,从而以较小的代价获得更好的译码性能。In this paper, the principle and structure of SCCC encoder is analyzed in detail. And simulation on the error-correction ability of this code in AWGN channels with low SNR carried out. The results indicate that the BER depends on interleaving length of the interleaver and iteration times of the decoding algorithm. The paper also gives the proper interleaving length and iteration times for the decoding algorithm.

关 键 词：串行级联卷积码 低信噪比 交织长度 

分 类 号：TN911.22[电子电信—通信与信息系统]