计算机工程与应用2011，Vol.47Issue(10)：89-91,97,4.DOI:10.3778/j.issn.1002-8331.2011.10.025
低复杂度Log-MAP译码算法的研究
Research on low-complexity algorithm for Log-MAP decoding.
摘要
Abstract
This paper proposes an approximate calculation for correction function of Log-MAP algorithm and obtaines a well turbo decoding in AWGN channel. The algorithm mainly uses segmenting and fitting method for correction function by spline function. The kind of the method has solved the difficulties and obstacles resulting from inaccessible calculation of correction function with exponential and logarithm operations. It shows that error correction performance of turbo decoder with the interpolation function calculating correction function is the same as that with Log-MAP algorithm, and the former algorithm complexity is much obviously lower than the latter.关键词
Turbo码/MAP算法/二次样条函数/Hermite插值Key words
Turbo codes/ MAP algorithm/ quadratic spline functions/ Hermite interpolation分类
信息技术与安全科学引用本文复制引用
毕岗,王建毅..低复杂度Log-MAP译码算法的研究[J].计算机工程与应用,2011,47(10):89-91,97,4.基金项目
浙江省自然科学基金(the Natural Science Foundation of Zhejiang Province of China under Grant No.Y107435). （the Natural Science Foundation of Zhejiang Province of China under Grant No.Y107435）
