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SW-Log-MAP译码算法在3G移动通信中的应用
引用本文:于秀兰,殷茜,冉静. SW-Log-MAP译码算法在3G移动通信中的应用[J]. 微电子学, 2006, 36(5): 638-641,650
作者姓名:于秀兰  殷茜  冉静
作者单位:1. 重庆邮电大学,重庆,400065
2. 北京大唐集团,北京,100038
摘    要:SW-Log-MAP译码算法在传统Turbo译码算法Log-MAP的基础上进行了改进,在保证译码性能的前提下,大大降低其运算复杂度,并将滑动窗的方法应用于译码模块,大大减少了存储空间;并且,在简化后的Turbo译码器基础上,通过仿真,对Turbo码的误码率性能进行研究,分析交织长度、滑动窗、纠正函数等因素对于译码性能的影响。

关 键 词:Turbo码  3G移动通信  Log-MAP算法  SW-Log-MAP算法
文章编号:1004-3365(2006)05-0638-04
收稿时间:2006-04-10
修稿时间:2006-04-102006-06-28

Application of SW-Log-MAP Decoding Algorithm in 3G Mobile Communication
YU Xiu-lan,YIN Qian,RAN Jing. Application of SW-Log-MAP Decoding Algorithm in 3G Mobile Communication[J]. Microelectronics, 2006, 36(5): 638-641,650
Authors:YU Xiu-lan  YIN Qian  RAN Jing
Affiliation:1. Chongqing University of Post and Telecommunications, Chongqing 400065, P. R. China; 2. BeiJing Datang Mobile Communications Equipment Co. Ltd. , Beijing 100038, P. R. China
Abstract:Based on the conventional Log-MAP decoding algorithm of turbo code,an improved SW-Log-MAP algorithm is proposed,which,by using sliding-window algorithm,greatly reduces the computational complexity and memory space without performance degradation.Based on the improved decoding structure,the improved algorithm is simulated to evaluate the influence of the parameters on performance of the turbo codes,such as interleave length,sliding window,error correct function and so on.
Keywords:Turbo code  3rd Generation mobile communication  Log-MAP algorithm  Sliding-window Log-MAP algorithm
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