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Performance of Parallel Concatenated Coding Schemes

机译:并行级联编码方案的性能

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摘要

In this paper, ensembles of parallel concatenated codes are studied and rigorous results on their asymptotic performance, under the assumption of maximum-likelihood (ML) decoding, are presented. In particular, it is proven that in any parallel concatenation scheme with $k$ branches where all $k$ encoders are recursive and the Bhattacharyya parameter of the channel is sufficiently small, the bit-error rate (BER) and the word-error rate go to $0$ exactly like $N^{1-k}$ and $N^{2-k}$, respectively. Different types of ensembles by changing the subgroup of permutations used to interconnect the various encoders, are considered.
机译:本文研究了并行级联码的集成,并在最大似然(ML)解码的假设下,给出了其渐近性能的严格结果。特别是,已经证明,在具有$ k $个分支的任何并行串联方案中,所有$ k $编码器都是递归的,并且通道的Bhattacharyya参数足够小,误码率(BER)和字误码率分别与$ N ^ {1-k} $和$ N ^ {2-k} $一样分别转到$ 0 $。考虑了通过改变用于互连各种编码器的置换的子组来实现不同类型的合奏。

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