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arXiv 2011.12882cs.ITmath.IT
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Reed-Muller码的稀疏多译码器递归投影聚集

Sparse Multi-Decoder Recursive Projection Aggregation for Reed-Muller Codes

Dorsa Fathollahi, Nariman Farsad, Seyyed Ali Hashemi, Marco Mondelli

摘要:

Reed-Muller(RM)码是最古老的码族之一。最近,已经提出了递归投影聚合(RPA)解码器,其对于短长度RM码实现了接近于最大似然解码器的性能。然而,它的一个主要缺点是需要大量的计算。在本文中,我们设计了一种新的算法,以降低计算预算,同时保持性能接近的RPA解码器。所提出的方法包括多个稀疏RPA,通过执行仅在每个稀疏解码器中的投影的选择而生成。最后,使用循环冗余校验(CRC)来决定输出码字。仿真结果表明,我们提出的方法减少了RPA解码器的计算$80\%$与可忽略不计的性能损失。

英文摘要:

Reed-Muller (RM) codes are one of the oldest families of codes. Recently, a recursive projection aggregation (RPA) decoder has been proposed, which achieves a performance that is close to the maximum likelihood decoder for short-length RM codes. One of its main drawbacks, however, is the large amount of computations needed. In this paper, we devise a new algorithm to lower the computational budget while keeping a performance close to that of the RPA decoder. The proposed approach consists of multiple sparse RPAs that are generated by performing only a selection of projections in each sparsified decoder. In the end, a cyclic redundancy check (CRC) is used to decide between output codewords. Simulation results show that our proposed approach reduces the RPA decoder's computations up to $80\%$ with negligible performance loss.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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