A low-complexity decoding algorithm for turbo codes

被引：0
|
作者：
Bai, BM [1 ]
Wang, XM [1 ]
Wang, QY [1 ]
机构：
[1] Xidian Univ, Natl Key Lab LSI, Xian 710071, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2000年 / 9卷 / 03期
关键词：
turbo codes; MAP algorithm; soft-output decoding; concatenated code;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new type of recursive algorithm for decoding turbo codes is proposed, based on a symbol-by-symbol maximum a posteriori probability algorithm. It requires only a forward recursion and has lower computational complexity. The number of variables to be stored increases linearly with the decoding delay. For iterative decoding, the extrinsic information given by the new algorithm is also described. This algorithm can be used in continuous decoding for both recursive and non-recursive encoder.
引用
收藏
页码：305 / 308
页数：4
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