计算机应用与软件2016，Vol.33Issue(3)：255-258,4.DOI:10.3969/j.issn.1000-386x.2016.03.060
采用近似 max*运算的 Log-MAP 译码算法
LOG-MAP DECODING ALGORITHM USING APPROXIMATE MAX* OPERATION
摘要
Abstract
In order to effectively reduce the consumption of Turbo decoding hardware storage,in this paper we propose an improved Log-MAP algorithm which is based on approximate max* operation,and find out two maximum values in a set of data through designing an appropriate digital circuit and embed them into their correlated function terms,thus effectively implement the hardware architecture of Turbo decoder with low complexity.Experimental results show that the proposed architecture is simpler by 30% on average than the architecture of Constant Log-MAP,it reaches the BER performance almost the same as Log-MAP’s,reduces the decoding complexity,and is convenient for practical engineering application.关键词
Turbo码/Log-MAP算法/Constant Log-MAP/复杂度Key words
Turbo codes/Log-MAP algorithm/Constant Log-MAP/Complexity分类
计算机与自动化引用本文复制引用
孙增友,李欢欢,王蒙,王景芹..采用近似 max*运算的 Log-MAP 译码算法[J].计算机应用与软件,2016,33(3):255-258,4.基金项目
国家自然科学基金项目 （）
