Maximum a posteriori decoding algorithms for turbo codes

被引：14
作者：
Sadjadpour, HR [1 ]
机构：
[1] AT&T Labs Res, Shannon Lab, Florham Pk, NJ 07932 USA
来源：
DIGITAL WIRELESS COMMUNICATION II | 2000年 / 4045卷
关键词：
iterative decoding; MAP decoding; turbo codes;
D O I：
10.1117/12.394081
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The symbol-by-symbol maximum a posteriori (MAP) known also as BCJR algorithm is described. The logarithmic versions of the MAP algorithm, namely, Log-MAP and Max-Log-MAP decoding algorithms along with a new Simplified-Log-MAP algorithm, are presented here. Their bit error rate (BER) performance and computational complexity of these algorithms are compared. A new hardware architecture for implementing the MAP-based decoding algorithms suitable for chip design is also presented here.
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收藏
页码：73 / 83
页数：11
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