摘要
针对LDPC码目前广泛使用的译码算法精度低的问题,在LLR-SPA译码算法的基础上提出了一种提高译码精度的新算法。该算法将LLR-SPA算法中复杂度较高的雅可比修正项采用泰勒级数进行分段线性近似,实验表明,该算法在译码复杂度基本不变的情况下,可以大幅度地提高其译码精度。
To improve the accuracy of LDPC codes decoding algorithm,an efficient algorithm is proposed.By using a piecewise linear function based on Taylor series to approximate the corrected term of the Jacobian logarithm in LLR-SPA decoding algorithm.The simulation results show that,the proposed algorithm can improve the decoding accuracy greatly when the computational complexity almost unchanged.
出处
《电子技术应用》
北大核心
2014年第10期63-65,共3页
Application of Electronic Technique
基金
山东省科技攻关计划项目(2012J0030009)
