低莱斯因子衰落信道下的Turbo码性能研究  

The Performance of Turbo Code on Low Rician Factor Channel

作　　者：张婧[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《山西电子技术》2010年第3期60-62,共3页Shanxi Electronic Technology

摘　　要：基于Turbo码编译码技术,在Rician衰落信道模型下,详细研究了Turbo码Log-MAP译码算法和SOVA译码算法在低Rician因子衰落信道下的性能,并结合调制技术对整个编译码系统进行Matlab仿真。仿真结果表明,在低Rician因子信道下,Log-MAP译码算法的性能优于SOVA译码算法。Based on the technology of Turbo coding-decoding and Rician channel model,the applicability of Log-MAP and SOVA iterative decoding algorithm on Rician fading channels is analyzed in this article. The performance of this system using both Log-MAP and SOVA algorithm is simulated through Matlab. The results show that the Log-MAP algorithm has slightly higher BER results than SOVA on the correlated fading channels.

关 键 词：低Rician因子 LOG-MAP译码算法 SOVA译码算法 BER 信噪比 

分 类 号：TN911.22[电子电信—通信与信息系统]