A* decoding of block codes with general threshold

被引：0
|
作者：
Chen, J [1 ]
Wang, YQ
Wang, XM
Cao, ZG
机构：
[1] Tsing Hua Univ, Dept Elect Engn, Natl Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China
[2] Xidian Univ, Natl Key Lab ISN, Xian 710071, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2002年 / 11卷 / 01期
关键词：
block codes; soft-decision; A* algorithm; general threshold;
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：
An improved A* decoding algorithm is described for binary block codes that performs maximum-likelihood soft-decision decoding through a code tree. Optimality test on a new candidate code-word is presented aiming to speed up search of the most likely (ML) codeword. Simulation results show that the proposed decoding scheme achieves optimal performance meanwhile significantly reducing decoding complexity compared with A* decoding available.
引用
收藏
页码：144 / 146
页数：3
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