摘要
PCGC是一种将LDPC码运用于并行级联编码形式的信道编码,它的译码采用的是修改后的双层迭代BP(beliefpropagation,置信传播)译码算法.这种译码算法的性能较好,但运算复杂度高,不利于硬件实现.该文介绍两种低复杂度的PCGC迭代译码算法,并通过仿真验证了算法具有非常好的性能.
The parallel concatenated gallager code (PCGC), a new kind of channel code which concatenates the low density parity check (LDPC) code in parallel, can be decoded in the two-layer iterative style. The PCGC decoder has good performance, but its high computation complexity interferes with its hardware implement. In this paper two kinds of low complexity PCGC iterative decoding algorithms, and the simulation results prove that the algorithms have excellent performance are proposed.
出处
《应用科学学报》
CAS
CSCD
北大核心
2005年第2期140-143,共4页
Journal of Applied Sciences
基金
国家自然科学基金重大项目(60496311)