论文标题
软解码而无需与Orbgrand的软拆除
Soft decoding without soft demapping with ORBGRAND
论文作者
论文摘要
对于光谱效率，高阶调制符号授予多个位的信息。但是，由于软检测到正向误差校正解码器假定二进制粒度的信息的可用性，但是，需要软磁化器来计算复杂值信号的每位可靠性。在这里，我们表明，最近引入的通用软检测解码器Orbgrand可以适应符号级软信息，从而避免了对能量昂贵的软拆除的需求。我们确定这样做可以降低复杂性，同时保留使用最佳Demapper实现的误差校正性能。
For spectral efficiency, higher order modulation symbols confer information on more than one bit. As soft detection forward error correction decoders assume the availability of information at binary granularity, however, soft demappers are required to compute per-bit reliabilities from complex-valued signals. Here we show that the recently introduced universal soft detection decoder ORBGRAND can be adapted to work with symbol-level soft information, obviating the need for energy expensive soft demapping. We establish that doing so reduces complexity while retaining the error correction performance achieved with the optimal demapper.
