论文标题
可变长度的约束编码和牛皮条件：均等案例
Variable-Length Constrained Coding and Kraft Conditions: The Parity-Preserving Case
论文作者
论文摘要
作者先前对固定长度约束编码器的先前工作扩展到可变长度的情况。具有平价变量长度编码器是正式定义的，为此，为宽敞的变量长度设置开发了牛皮条件。然后，为给定约束而存在确定性平等的可变长度编码器，提出了必要和充分的条件。提供的示例表明，存在奇异比率的情况，其中存在奇偶校验的可变长度编码器，而固定长度编码器则不存在。
Previous work by the authors on parity-preserving fixed-length constrained encoders is extended to the variable-length case. Parity-preserving variable-length encoders are formally defined, and, to this end, Kraft conditions are developed for the parity-preserving variable-length setting. Then, a necessary and sufficient condition is presented for the existence of deterministic parity-preserving variable-length encoders for a given constraint. Examples are provided that show that there are coding ratios where parity-preserving variable-length encoders exist, while fixed-length encoders do not.
