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
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.
出处
《应用科学学报》
CAS
CSCD
2002年第1期38-41,共4页
Journal of Applied Sciences
基金
国家自然科学基金资助项目 ( 60 0 72 0 13)
