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BCM的多阶段译码算法

, PP. 131-134

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Abstract:

针对在某些通信系统中对译码速度较高的需求,基于分组编码调制(BCM,BlockCodingModulation)的多级结构,给出了一种多级BCM的多阶段译码算法从BCM中第一级分量码开始,根据BCM的级数逐阶段进行译码,针对每级分量码,采用软判决最大似然译码,直到最后一级分量码,从而降低了译码复杂度.仿真结果表明,与传统Viterbi译码算法相比,提出的多阶段译码算法的误码性能与其相当,信噪比较小时甚至更好,但译码复杂度远低于传统Viterbi译码方法.

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