摘要
Mackay-Neal算法是基于LDPC码的BP译码简化算法,但仍存在大量乘法运算。为了降低译码算法的运算量,基于Mackay-Neal算法提出一种改进的对数和积译码算法。最后通过计算量复杂度分析结果表明,改进后的对数和积译码算法更简单,运算量大大降低,易于硬件的实现。
Mackay-Neal algorithm is a simplified decoding algorithm of BP algorithm,which is based on LDPC,but it still contains large number of multiplication.A modified Iog-13P algorithm based on Mackay-Neal algorithm is proposed for the purpose of reducing the computation complexity.Finally,the result of analyzing the computation complexity demonstrates that the proposed Iog-BP algorithm is more simplified;furthermore,it can decrease the computations greatly and make the hardware realization easier.
出处
《工业控制计算机》
2011年第11期72-74,共3页
Industrial Control Computer
