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由Imai与Hirakawa提出的多层编码方法可用来构造具有任意大最小平方欧氏距离的分组调制码(BCM码),对于用此方法构造的码字的译码可采用多级译码,文章给出一种新的方法来实现多级译码,仿真结果表明这种多级译码方法比传统的多级译码有更好的误码性能。
The multi-layer coding method proposed by Imai and Hirakawa can be used to construct a BCM code with arbitrary large and small square Euclidean distance. For the decoding of the code words constructed by this method, multi-level decoding can be used, A new method is presented to realize multi-level decoding. The simulation results show that this multi-level decoding method has better error performance than the traditional multi-level decoding.