Advanced hardware architecture for soft decoding Reed-Solomon codes
Advanced hardware architecture for soft decoding Reed-Solomon codes
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DOI：
10.1109/istc.2014.6955078
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发表时间：
2014-11
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通讯作者：
S. Scholl;N. Wehn
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文献类型：
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作者：
S. Scholl;N. Wehn
与硬判决译码相比，Reed-Solomon码的软判决译码大大提高了译码性能。在本文中，我们提出了一种先进的架构，基于信息集解码处理软信息。该架构具有高效的二阶再处理和处理多个信息集。在Virtex 5 FPGA上对广泛使用的RS（255，239）结构的复杂度和性能进行了评估。实现了1.3 dB的通信增益，据我们所知，这比所有其他最先进的实现方式都要高出0.5 dB以上。
Soft decision decoding of Reed-Solomon codes improves decoding performance considerably in comparison to hard decision decoding. In this paper, we propose an advanced architecture based on information set decoding for processing soft information. The architecture features efficient order-2 reprocessing and handling of multiple information sets. Complexity and performance of the architecture for the widely used RS(255,239) are evaluated on a Virtex 5 FPGA. A communications gain of 1.3 dB is achieved, which outperforms to our best knowledge all other state-of-the-art implementations by more than 0.5 dB.