并行级联分组码基于相关运算的叠加反馈译码

Superposition feedback decoding algorithm for parallel concatenated block code based on correlation operation

为了获得接近LLR算法的译码性能,对译码器的输出进行简单的相关运算,并对Chase2译码算法进行适当的改进,通过将接收信息与子译码器的输出软信息进行线性叠加反馈,实现了并行级联分组码的Turbo迭代译码。仿真研究验证了算法的有效性。

For getting the coding performance close to LLR algorithm, the simple correlation operation with the output of the decoder was carried out, and the Chase2 decoding algorithm was modified. By receiving information with the soft information of the sub-decoder output, the turbo iterative decoding of parallel concatenated block code was realized. Simulation results show that this algorithm is valid.